CVE-2026-111830

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-111830", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "state": "PUBLISHED", "assignerShortName": "Patchstack", "dateReserved": "2026-10-17T00:17:57.460Z", "datePublished": "2026-10-22T08:00:49.652Z", "dateUpdated": "2026-10-22T10:56:14.523Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-10-22T08:00:49.652Z"}, "title": "WordPress WP Mailster plugin <= 1.9.1.0 - Cross Site Scripting (XSS) vulnerability", "datePublic": "2026-10-20T07:13:31.000Z", "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Mailster WP Mailster wp-mailster allows Stored XSS.This issue affects WP Mailster: from n/a through 1.9.1.0.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Mailster WP Mailster wp-mailster allows Stored XSS.<p>This issue affects WP Mailster: from n/a through 1.9.1.0.</p>"}]}], "affected": [{"vendor": "WP Mailster", "product": "WP Mailster", "packageName": "wp-mailster", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "versions": [{"version": "0", "versionType": "custom", "status": "affected", "lessThanOrEqual": "1.9.1.0", "changes": [{"at": "1.9.2.0", "status": "unaffected"}]}]}], "references": [{"url": "https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-cross-site-scripting-xss-vulnerability?_s_id=cve", "tags": ["vdb-entry"]}], "credits": [{"lang": "en", "value": "V1T | Patchstack Bug Bounty Program", "type": "finder"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "lang": "en", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "Stored XSS"}]}], "solutions": [{"lang": "en", "value": "Update the WordPress WP Mailster plugin to the latest available version (at least 1.9.2.0).", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Update the WordPress WP Mailster plugin to the latest available version (at least 1.9.2.0)."}]}], "tags": ["x_open-source"]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-111830", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-22T10:48:15.330902Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-22T10:56:14.523Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-111830", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-22T10:48:15.330902Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-22T10:51:54.772Z"}}], "cna": {"tags": ["x_open-source"], "title": "WordPress WP Mailster plugin <= 1.9.1.0 - Cross Site Scripting (XSS) vulnerability", "credits": [{"lang": "en", "type": "finder", "value": "V1T | Patchstack Bug Bounty Program"}], "impacts": [{"capecId": "CAPEC-592", "descriptions": [{"lang": "en", "value": "Stored XSS"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "WP Mailster", "product": "WP Mailster", "versions": [{"status": "affected", "changes": [{"at": "1.9.2.0", "status": "unaffected"}], "version": "0", "versionType": "custom", "lessThanOrEqual": "1.9.1.0"}], "packageName": "wp-mailster", "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update the WordPress WP Mailster plugin to the latest available version (at least 1.9.2.0).", "supportingMedia": [{"type": "text/html", "value": "Update the WordPress WP Mailster plugin to the latest available version (at least 1.9.2.0).", "base64": false}]}], "datePublic": "2026-10-20T07:13:31.000Z", "references": [{"url": "https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-cross-site-scripting-xss-vulnerability?_s_id=cve", "tags": ["vdb-entry"]}], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Mailster WP Mailster wp-mailster allows Stored XSS.This issue affects WP Mailster: from n/a through 1.9.1.0.", "supportingMedia": [{"type": "text/html", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Mailster WP Mailster wp-mailster allows Stored XSS.<p>This issue affects WP Mailster: from n/a through 1.9.1.0.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-79", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "providerMetadata": {"orgId": "21595511-bba5-4825-b968-b78d1f9984a3", "shortName": "Patchstack", "dateUpdated": "2026-10-22T08:00:49.652Z"}}}, "cveMetadata": {"cveId": "CVE-2026-111830", "state": "PUBLISHED", "dateUpdated": "2026-10-22T10:56:14.523Z", "dateReserved": "2026-10-17T00:17:57.460Z", "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3", "datePublished": "2026-10-22T08:00:49.652Z", "assignerShortName": "Patchstack"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "packageName": "wp-mailster", "product": "WP Mailster", "vendor": "WP Mailster", "versions": [{"changes": [{"at": "1.9.2.0", "status": "unaffected"}], "lessThanOrEqual": "1.9.1.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "audit@patchstack.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Mailster WP Mailster wp-mailster allows Stored XSS.This issue affects WP Mailster: from n/a through 1.9.1.0."}], "id": "CVE-2026-111830", "lastModified": "2026-10-22T15:15:23.833", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.7, "source": "audit@patchstack.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-111830", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-22T10:48:15.330902Z", "version": "2.0.3"}}]}, "published": "2026-10-22T09:17:13.597", "references": [{"source": "audit@patchstack.com", "url": "https://patchstack.com/database/wordpress/plugin/wp-mailster/vulnerability/wordpress-wp-mailster-plugin-1-9-1-0-cross-site-scripting-xss-vulnerability?_s_id=cve"}], "sourceIdentifier": "audit@patchstack.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "audit@patchstack.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.9.1.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[1.9.2.0,*]"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wp_mailster", "vendor": "wordpress-extensions"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.9.1.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[1.9.2.0,*]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 98.0, "source": "matching"}]}, "original": {"product": "WP Mailster", "source": "cna", "vendor": "WP Mailster"}, "product": "wp_mailster", "vendor": "wpmailster"}], "created": "2026-10-22T10:15:03.392901+00:00", "updated": "2026-10-22T10:15:03.757092+00:00", "vendors": ["wordpress-extensions", "wordpress-extensions$PRODUCT$wp_mailster", "wpmailster", "wpmailster$PRODUCT$wp_mailster"]}