CVE-2026-22182

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-22182", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-01-06T16:47:17.182Z", "datePublished": "2026-03-13T01:17:59.272Z", "dateUpdated": "2026-03-13T14:47:20.700Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-03-13T01:17:59.272Z"}, "datePublic": "2026-03-11T00:00:00.000Z", "title": "wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationType", "descriptions": [{"lang": "en", "value": "wpDiscuz before 7.6.47 contains an unauthenticated denial of service vulnerability that allows anonymous users to trigger mass notification emails by exploiting the checkNotificationType() function. Attackers can repeatedly call the wpdiscuz-ajax.php endpoint with arbitrary postId and comment_id parameters to flood subscribers with notifications, as the handler lacks nonce verification, authentication checks, and rate limiting."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Missing Authorization", "cweId": "CWE-862", "type": "CWE"}]}], "affected": [{"vendor": "gVectors", "product": "wpDiscuz", "versions": [{"version": "0", "status": "affected", "lessThan": "7.6.47", "versionType": "custom"}, {"version": "7.6.47", "status": "unaffected"}], "defaultStatus": "unaffected", "packageURL": "pkg:wordpress-plugin/wpdiscuz"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*", "versionEndExcluding": "7.6.47"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://wordpress.org/plugins/wpdiscuz/#developers", "name": "wpDiscuz Changelog", "tags": ["patch"]}, {"url": "https://wordpress.org/plugins/wpdiscuz/", "name": "wpDiscuz", "tags": ["product"]}, {"name": "VulnCheck Advisory: wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationType", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/wpdiscuz-before-unauthenticated-email-notification-flood-via-wpdchecknotificationtype"}], "x_generator": {"engine": "scooter"}, "credits": [{"lang": "en", "value": "Scott Moore - VulnCheck", "type": "finder"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-13T14:47:07.556545Z", "id": "CVE-2026-22182", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-13T14:47:20.700Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-22182", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-01-06T16:47:17.182Z", "datePublished": "2026-03-13T01:17:59.272Z", "dateUpdated": "2026-03-13T14:47:20.700Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-03-13T01:17:59.272Z"}, "datePublic": "2026-03-11T00:00:00.000Z", "title": "wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationType", "descriptions": [{"lang": "en", "value": "wpDiscuz before 7.6.47 contains an unauthenticated denial of service vulnerability that allows anonymous users to trigger mass notification emails by exploiting the checkNotificationType() function. Attackers can repeatedly call the wpdiscuz-ajax.php endpoint with arbitrary postId and comment_id parameters to flood subscribers with notifications, as the handler lacks nonce verification, authentication checks, and rate limiting."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Missing Authorization", "cweId": "CWE-862", "type": "CWE"}]}], "affected": [{"vendor": "gVectors", "product": "wpDiscuz", "versions": [{"version": "0", "status": "affected", "lessThan": "7.6.47", "versionType": "custom"}, {"version": "7.6.47", "status": "unaffected"}], "defaultStatus": "unaffected", "packageURL": "pkg:wordpress-plugin/wpdiscuz"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*", "versionEndExcluding": "7.6.47"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://wordpress.org/plugins/wpdiscuz/#developers", "name": "wpDiscuz Changelog", "tags": ["patch"]}, {"url": "https://wordpress.org/plugins/wpdiscuz/", "name": "wpDiscuz", "tags": ["product"]}, {"name": "VulnCheck Advisory: wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationType", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/wpdiscuz-before-unauthenticated-email-notification-flood-via-wpdchecknotificationtype"}], "x_generator": {"engine": "scooter"}, "credits": [{"lang": "en", "value": "Scott Moore - VulnCheck", "type": "finder"}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-22182", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-13T14:47:07.556545Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-13T14:47:13.905Z"}}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:wordpress-plugin/wpdiscuz", "product": "wpDiscuz", "vendor": "gVectors", "versions": [{"lessThan": "7.6.47", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "7.6.47"}]}], "source": "disclosure@vulncheck.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "A81F51B9-0C21-4F7E-876B-C09A66B9AE05", "versionEndExcluding": "7.6.47", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "wpDiscuz before 7.6.47 contains an unauthenticated denial of service vulnerability that allows anonymous users to trigger mass notification emails by exploiting the checkNotificationType() function. Attackers can repeatedly call the wpdiscuz-ajax.php endpoint with arbitrary postId and comment_id parameters to flood subscribers with notifications, as the handler lacks nonce verification, authentication checks, and rate limiting."}, {"lang": "es", "value": "wpDiscuz anterior a la versi\u00f3n 7.6.47 contiene una vulnerabilidad de denegaci\u00f3n de servicio no autenticada que permite a usuarios an\u00f3nimos activar correos electr\u00f3nicos de notificaci\u00f3n masiva explotando la funci\u00f3n checkNotificationType(). Los atacantes pueden llamar repetidamente al endpoint wpdiscuz-ajax.php con par\u00e1metros postId y comment_id arbitrarios para inundar a los suscriptores con notificaciones, ya que el gestor carece de verificaci\u00f3n de nonce, comprobaciones de autenticaci\u00f3n y limitaci\u00f3n de velocidad."}], "id": "CVE-2026-22182", "lastModified": "2026-06-17T10:19:29.867", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22182", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-13T14:47:07.556545Z", "version": "2.0.3"}}]}, "published": "2026-03-13T19:54:07.480", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "https://wordpress.org/plugins/wpdiscuz/"}, {"source": "disclosure@vulncheck.com", "tags": ["Product", "Release Notes"], "url": "https://wordpress.org/plugins/wpdiscuz/#developers"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/wpdiscuz-before-unauthenticated-email-notification-flood-via-wpdchecknotificationtype"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-770"}, {"lang": "en", "value": "CWE-862"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,7.6.47)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "7.6.47"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "wpDiscuz", "source": "cna", "vendor": "gVectors"}, "product": "wpdiscuz", "vendor": "gvectors"}, {"configurations": [{"platform": ["wordpress"], "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-03-17T21:52:14.972713+00:00", "value": {"mitigation_remediation": ["Update wpDiscuz to version 7.6.47 or later", "Verify that no older version remains installed and that wpdiscuz-ajax.php is not exposed unnecessarily", "Implement rate limiting or blocking of repetitive requests to wpdiscuz-ajax.php via a web\u2011application firewall"], "summary": {"action": "Patch", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the gVectors:wpDiscuz plugin distributed via WordPress. All releases before 7.6.47 are vulnerable. The Common Platform Enumeration for the product is cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*. Administrators using older plugin versions should verify their installation and plan an update.", "description_and_impact": "wpDiscuz, a WordPress comment plugin, prior to version 7.6.47 contains an unauthenticated denial\u2011of\u2011service weakness that allows attackers to trigger an uncontrolled flood of email notifications. The vulnerability is located in the checkNotificationType() function, which is exposed through the wpdiscuz-ajax.php endpoint without requiring any nonce verification, authentication, or rate limiting. When an attacker repeatedly supplies arbitrary postId and comment_id parameters, the plugin sends a large volume of notification emails to all subscribers, exhausting mail server resources and interrupting normal service. This flaw maps to CWE-770 (Excessive Resource Consumption) and CWE-862 (Missing Access Control).", "risk_and_exploitability": "The flaw has a CVSS score of 8.7, classifying it as high severity. The EPSS score is below 1\u202f%, and the vulnerability is not listed in the CISA KEV catalog, suggesting that no known weaponised exploit exists. The attack is likely remote and entirely unauthenticated, requiring only the ability to issue HTTP requests to the wpdiscuz-ajax.php endpoint. Because it lacks authentication checks, a threat actor can rapidly flood the system with notification emails, resulting in immediate denial of service to legitimate users and potential reputational damage."}}}}, "created": "2026-03-13T09:49:25.969160+00:00", "updated": "2026-03-23T10:00:01.044963+00:00", "vendors": ["gvectors", "gvectors$PRODUCT$wpdiscuz", "wordpress", "wordpress$PRODUCT$wordpress"]}