{"id":"CVE-2026-100108","state":"PUBLISHED","title":"Social Share Buttons <= 1.30 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'share_url' Network Setting","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.","publishedAt":"2026-10-16T07:44:03.268Z","updatedAt":"2026-10-16T14:39:01.800Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["maxfoundry Social Share Buttons"],"affected":[{"vendor":"maxfoundry","product":"Social Share Buttons","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.30","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/bc098f5d-3c59-4046-bce8-ac2586e6da19?source=cve","https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social-networks.php#L370","https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/blocks/network-block.php#L47","https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-network.php#L275","https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/admin/review_notice.php#L26","https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social.php#L60","https://plugins.trac.wordpress.org/changeset?reponame=&old=3735252%40share-button&new=3735252%40share-button"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100108.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100108","state":"PUBLISHED","datePublished":"2026-10-16T07:44:03.268Z","dateUpdated":"2026-10-16T14:39:01.800Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-09-25T11:15:51.869Z"},"containers":{"cna":{"title":"Social Share Buttons <= 1.30 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'share_url' Network Setting","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"maxfoundry","product":"Social Share Buttons","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"1.30","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/bc098f5d-3c59-4046-bce8-ac2586e6da19?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social-networks.php#L370"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/blocks/network-block.php#L47"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-network.php#L275"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/admin/review_notice.php#L26"},{"url":"https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social.php#L60"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=&old=3735252%40share-button&new=3735252%40share-button"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-10-16T07:44:03.268Z"},"credits":[{"lang":"en","type":"finder","value":"chimerascope"}],"timeline":[{"time":"2026-09-30T15:30:13.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-10-15T19:41:23.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-100108","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-16T14:33:43.282916Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-16T14:39:01.800Z"}}]}}}