{"id":"CVE-2026-100108","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-100108","generatedAt":"2026-10-28T01:00:57.493Z","title":"The Social Share Buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form (containing share_url)' parameter in all versions up to, and including, 1.30 due to insufficient input sanitization and output escaping.","description":"The Social Share Buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form (containing share_url)' parameter in all versions up to, and including, 1.30 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the 7-day review-nag timer has elapsed since the attacker's first wp-admin visit, as the nonce needed to reach the save-network handler is only rendered in the DOM once that timer has passed.","published":"2026-10-16T08:17:12.000Z","lastModified":"2026-10-16T15:16:58.000Z","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":0.00195,"percentile":0.09126,"date":"2026-10-26","history":[{"date":"2026-10-16","score":0.00201,"percentile":0.09304}]},"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 (0.19%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-16T08:17:12.000Z","detail":{"score":"6.4","severity":"MEDIUM","publishedAt":"2026-10-16T08:17:12.320Z"},"summary":"New CVE, medium severity (CVSS 6.4)."}],"references":[{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/admin/review_notice.php#L26","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/blocks/network-block.php#L47","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-network.php#L275","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social-networks.php#L370","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social.php#L60","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3735252%40share-button&new=3735252%40share-button","source":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/bc098f5d-3c59-4046-bce8-ac2586e6da19?source=cve","source":"security@wordfence.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-100108","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."}