{"id":"CVE-2026-9239","aliases":[],"cve":{"records":[{"id":"CVE-2026-9239","source":"Wordfence","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-05-21T18:54:00.426Z","published":"2026-10-30T17:15:26.845Z","modified":"2026-10-30T18:08:58.980Z"}],"publishers":[{"name":"Wordfence","role":"CNA","organizationId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","modified":"2026-10-30T17:15:26.845Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T18:08:58.980Z"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/49afa739-83f0-4ad7-9e5e-d600f293b938?source=cve","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.9/classes/core.php#L469","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.9/classes/core.php#L465","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.9/classes/run.php#L12","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.5/classes/core.php#L469","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.5/classes/core.php#L465","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.5/classes/run.php#L12","tags":[],"source":"Wordfence"},{"url":"https://plugins.trac.wordpress.org/changeset?old_path=/meow-gallery/tags/5.5.1&new_path=/meow-gallery/tags/5.5.2","tags":[],"source":"Wordfence"}],"weaknesses":[{"id":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation","source":"Wordfence"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T17:33:50.978497Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Meow Gallery <= 5.5.1 - Authenticated (Author+) Stored Cross-Site Scripting via Attachment Alt Text (aria-label attribute)","titleSource":"Wordfence","descriptionSource":"Wordfence","description":"The Meow Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Attachment Alt Text (aria-label attribute) in all versions up to, and including, 5.5.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerable code path is only reachable when a gallery item is rendered as a link (i.e., link_href is non-empty), and exploitation relies on the fact that WordPress's sanitize_text_field() strips angle-bracketed tags but preserves double quotes, allowing an attacker to break out of the aria-label attribute context and inject event-handler attributes such as onclick.","score":6.4,"severity":"medium","published":"2026-10-30T17:15:26.845Z","modified":"2026-10-30T18:08:58.980Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"tigroumeow","name":"Meow Gallery","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.5.1","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"Wordfence","url":"https://www.cve.org/CVERecord?id=CVE-2026-9239"}],"remediation":[],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/49afa739-83f0-4ad7-9e5e-d600f293b938?source=cve","https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.9/classes/core.php#L469","https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.9/classes/core.php#L465","https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.9/classes/run.php#L12","https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.5/classes/core.php#L469","https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.5/classes/core.php#L465","https://plugins.trac.wordpress.org/browser/meow-gallery/tags/5.4.5/classes/run.php#L12","https://plugins.trac.wordpress.org/changeset?old_path=/meow-gallery/tags/5.5.1&new_path=/meow-gallery/tags/5.5.2"],"sources":[{"name":"CVE","id":"CVE-2026-9239","modified":"2026-10-30T18:08:58.980Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-9239"}],"assessments":[{"source":"Wordfence","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","score":6.4}],"sourceAffected":[],"observedAt":"2026-10-30T19:13:20.955Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T00:40:31.812Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}