{"id":"CVE-2026-1293","state":"PUBLISHED","title":"Yoast SEO <= 26.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'yoast-schema' Block Attribute","description":"The Yoast SEO – Advanced SEO with real-time guidance and built-in AI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the `yoast-schema` block attribute in all versions up to, and including, 26.8 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.","publishedAt":"2026-02-06T11:21:30.973Z","updatedAt":"2026-04-08T17:05:48.147Z","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":["yoast Yoast SEO – Advanced SEO with real-time guidance and built-in AI"],"affected":[{"vendor":"yoast","product":"Yoast SEO – Advanced SEO with real-time guidance and built-in AI","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"26.8","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/8b2e7c2d-ed2f-439b-9cee-f2e5d46121b6?source=cve","https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/src/presenters/schema-presenter.php#L49","https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/inc/class-wpseo-utils.php#L915","https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/src/generators/schema-generator.php#L188"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/1xxx/CVE-2026-1293.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1293","state":"PUBLISHED","datePublished":"2026-02-06T11:21:30.973Z","dateUpdated":"2026-04-08T17:05:48.147Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-01-21T16:53:09.134Z"},"containers":{"cna":{"title":"Yoast SEO <= 26.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'yoast-schema' Block Attribute","descriptions":[{"lang":"en","value":"The Yoast SEO – Advanced SEO with real-time guidance and built-in AI plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the `yoast-schema` block attribute in all versions up to, and including, 26.8 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."}],"affected":[{"vendor":"yoast","product":"Yoast SEO – Advanced SEO with real-time guidance and built-in AI","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"26.8","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/8b2e7c2d-ed2f-439b-9cee-f2e5d46121b6?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/src/presenters/schema-presenter.php#L49"},{"url":"https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/inc/class-wpseo-utils.php#L915"},{"url":"https://plugins.trac.wordpress.org/browser/wordpress-seo/tags/26.8/src/generators/schema-generator.php#L188"}],"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":"2026-04-08T17:05:48.147Z"},"credits":[{"lang":"en","type":"finder","value":"suyoung kim"}],"timeline":[{"time":"2026-01-09T00:00:00.000Z","lang":"en","value":"Discovered"},{"time":"2026-02-05T22:18:00.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-06T12:27:02.594220Z","id":"CVE-2026-1293","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-06T12:27:32.895Z"}}]}}}