{"id":"CVE-2026-109972","aliases":[],"title":"s2Member <= 261011 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'date_format' Shortcode Attribute","titleSource":"Wordfence","descriptionSource":"Wordfence","products":[{"vendor":"clavaque","name":"s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"261011","versionType":"semver"}],"defaultStatus":"unaffected","source":"Wordfence","url":"https://www.cve.org/CVERecord?id=CVE-2026-109972"}],"remediation":[],"description":"The s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'date_format' parameter in all versions up to, and including, <= 261011 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload bypasses wp_kses_post() on save because it contains no literal angle brackets — only backslash-escaped sequences that PHP's date() materializes into HTML tag characters at render time after WordPress's shortcode_parse_atts() applies stripcslashes() to the attribute value.","severity":"medium","score":6.4,"published":"2026-10-28T06:45:08.551Z","modified":"2026-10-28T16:10:21.905Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/2782f0f7-625d-4141-8e2c-4bdaa0219007?source=cve","https://plugins.trac.wordpress.org/browser/s2member/trunk/src/includes/classes/sc-gets-in.inc.php#L119","https://plugins.trac.wordpress.org/browser/s2member/trunk/src/includes/classes/sc-gets-in.inc.php#L98","https://plugins.trac.wordpress.org/browser/s2member/trunk/src/includes/classes/sc-gets-in.inc.php#L53","https://plugins.trac.wordpress.org/browser/s2member/trunk/src/includes/codes.inc.php#L24","https://plugins.trac.wordpress.org/changeset/3751344/s2member/trunk/src/includes/classes/sc-gets-in.inc.php"],"sources":[{"name":"CVE","id":"CVE-2026-109972","modified":"2026-10-28T16:10:21.905Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-109972"}],"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":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T01:35:32.302Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-28T10:05:38.433Z","attemptedAt":"2026-10-28T10:05:38.433Z"},{"source":"GHSA","status":"refresh-failed","attemptedAt":"2026-10-28T10:05:33.236Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-28T10:05:38.435Z","attemptedAt":"2026-10-28T10:05:38.435Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-28T10:05:37.554Z","attemptedAt":"2026-10-28T10:05:37.554Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-109972","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109972","modified":"2026-10-28T07:16:45.017","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","checkedAt":"2026-10-28T10:05:38.433Z"},{"source":"ENISA EUVD","id":"EUVD-2026-111741","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-111741","modified":"Oct 28, 2026, 9:31:54 AM","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","checkedAt":"2026-10-28T10:05:38.435Z"}]}