{"id":"CVE-2026-13295","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-13295","generatedAt":"2026-10-28T08:27:46.281Z","title":"The Page Builder by SiteOrigin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via panels_data Parameter in all versions up to, and including, 2.34.3 due to insufficient input sanitization and output escaping.","description":"The Page Builder by SiteOrigin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via panels_data Parameter in all versions up to, and including, 2.34.3 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. This is possible because the nonce and edit_post capability checks enforced during save are both satisfied by Contributor-level users for their own posts, and the panels_data value is stored as post meta — outside the scope of WordPress's unfiltered_html carve-out — meaning no wp_kses fallback prevents the unsanitized WP_Widget_Custom_HTML content from being persisted and later rendered verbatim on the frontend.","published":"2026-06-27T08:16:45.000Z","lastModified":"2026-06-29T18:40:23.000Z","status":"Deferred","sourceIdentifier":"security@wordfence.com","cvss":{"version":"3.1","score":6.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.00419,"percentile":0.36002,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/admin.php#L1085","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/admin.php#L236","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/admin.php#L254","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.1/inc/renderer.php#L950","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/admin.php#L1085","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/admin.php#L236","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/admin.php#L254","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/siteorigin-panels/tags/2.34.3/inc/renderer.php#L950","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3585987%40siteorigin-panels&new=3585987%40siteorigin-panels&sfp_email=&sfph_mail=","source":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/7830b3dc-7d20-4516-b4d6-57636ca773e9?source=cve","source":"security@wordfence.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-13295","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}