CVE-2026-53674

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53674", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-06-09T23:14:36.036Z", "datePublished": "2026-06-09T23:44:21.471Z", "dateUpdated": "2026-06-10T16:32:21.733Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-06-09T23:44:21.471Z"}, "datePublic": "2026-06-09T00:00:00.000Z", "title": "BuddyPress 14.4.0 REGEXP Injection via @Mention Username Resolution", "descriptions": [{"lang": "en", "value": "BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters pass through esc_sql unescaped and are inserted into an unprepared REGEXP query against the users table, enabling boolean-based inference of usernames and denial of service through catastrophic backtracking."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Special Elements in Data Query Logic", "cweId": "CWE-943", "type": "CWE"}]}], "affected": [{"vendor": "BuddyPress", "product": "BuddyPress", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThanOrEqual": "14.4.0"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:buddypress:buddypress:*:*:*:*:*:wordpress:*:*", "versionEndIncluding": "14.4.0"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 7.1, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "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:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://buddypress.org/", "tags": ["product"]}, {"url": "https://wordpress.org/plugins/buddypress/", "tags": ["product"]}, {"name": "VulnCheck Advisory: BuddyPress 14.4.0 REGEXP Injection via @Mention Username Resolution", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/buddypress-regexp-injection-via-mention-username-resolution"}], "credits": [{"lang": "en", "value": "Scott Moore - VulnCheck", "type": "finder"}], "x_generator": {"engine": "scooter"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-10T16:03:04.734924Z", "id": "CVE-2026-53674", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-06-10T16:32:21.733Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53674", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-06-09T23:14:36.036Z", "datePublished": "2026-06-09T23:44:21.471Z", "dateUpdated": "2026-06-10T16:32:21.733Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-06-09T23:44:21.471Z"}, "datePublic": "2026-06-09T00:00:00.000Z", "title": "BuddyPress 14.4.0 REGEXP Injection via @Mention Username Resolution", "descriptions": [{"lang": "en", "value": "BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters pass through esc_sql unescaped and are inserted into an unprepared REGEXP query against the users table, enabling boolean-based inference of usernames and denial of service through catastrophic backtracking."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Special Elements in Data Query Logic", "cweId": "CWE-943", "type": "CWE"}]}], "affected": [{"vendor": "BuddyPress", "product": "BuddyPress", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThanOrEqual": "14.4.0"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:buddypress:buddypress:*:*:*:*:*:wordpress:*:*", "versionEndIncluding": "14.4.0"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 7.1, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "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:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://buddypress.org/", "tags": ["product"]}, {"url": "https://wordpress.org/plugins/buddypress/", "tags": ["product"]}, {"name": "VulnCheck Advisory: BuddyPress 14.4.0 REGEXP Injection via @Mention Username Resolution", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/buddypress-regexp-injection-via-mention-username-resolution"}], "credits": [{"lang": "en", "value": "Scott Moore - VulnCheck", "type": "finder"}], "x_generator": {"engine": "scooter"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53674", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-10T16:03:04.734924Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-10T16:08:19.550Z"}}]}}

{"affected": [{"affectedData": [{"product": "BuddyPress", "vendor": "BuddyPress", "versions": [{"lessThanOrEqual": "14.4.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "BuddyPress 14.4.0 contains a regular expression injection vulnerability in the activity mention resolver that, when username compatibility mode is enabled, allows attackers to manipulate a REGEXP database clause by crafting mention names containing regex metacharacters. Attackers can submit @mentions whose metacharacters pass through esc_sql unescaped and are inserted into an unprepared REGEXP query against the users table, enabling boolean-based inference of usernames and denial of service through catastrophic backtracking."}, {"lang": "es", "value": "BuddyPress 14.4.0 contiene una vulnerabilidad de inyecci\u00f3n de expresiones regulares en el resolvedor de menciones de actividad que, cuando el modo de compatibilidad de nombre de usuario est\u00e1 habilitado, permite a los atacantes manipular una cl\u00e1usula REGEXP de base de datos mediante la creaci\u00f3n de nombres de menci\u00f3n que contienen metacaracteres de regex. Los atacantes pueden enviar @menciones cuyos metacaracteres pasan por esc_sql sin escapar y se insertan en una consulta REGEXP no preparada contra la tabla de usuarios, lo que permite la inferencia de nombres de usuario basada en booleanos y la denegaci\u00f3n de servicio a trav\u00e9s de un retroceso catastr\u00f3fico."}], "id": "CVE-2026-53674", "lastModified": "2026-07-23T09:10:00.113", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "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": 7.1, "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": "LOW", "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:L/UI:N/VC:L/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": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53674", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-10T16:03:04.734924Z", "version": "2.0.3"}}]}, "published": "2026-06-10T00:16:55.190", "references": [{"source": "disclosure@vulncheck.com", "url": "https://buddypress.org/"}, {"source": "disclosure@vulncheck.com", "url": "https://wordpress.org/plugins/buddypress/"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/buddypress-regexp-injection-via-mention-username-resolution"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-943"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,14.4.0]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "BuddyPress", "source": "cna", "vendor": "BuddyPress"}, "product": "buddypress", "vendor": "buddypress"}, {"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"}], "created": "2026-06-10T01:45:18.715364+00:00", "updated": "2026-06-10T02:45:15.383966+00:00", "vendors": ["buddypress", "buddypress$PRODUCT$buddypress", "wordpress", "wordpress$PRODUCT$wordpress"]}