{"id":"GHSA-28w5-j8xj-2xwc","aliases":["CVE-2021-36788"],"title":"Cross-site Scripting in the yoast_seo TYPO3 extension","description":"The extension fails to properly encode user input for output in HTML context. A TYPO3 backend user account is required to exploit the vulnerability.","severity":"medium","score":5.4,"published":"2021-09-01T18:36:44.000Z","modified":"2023-11-08T04:06:16.613Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"yoast-seo-for-typo3/yoast_seo","ranges":[{"events":[{"introduced":"0"},{"fixed":"7.2.3"}],"type":"ECOSYSTEM"}],"versions":["7.1.0","7.1.1","7.1.2","7.1.3","7.2.0","7.2.1","7.2.2","v1.0","v1.0-beta","v1.0-rc","v1.0.1","v1.1.0","v1.1.1","v1.1.2","v1.2.0","v1.2.1","v1.2.2","v1.2.3","v1.3.0","v1.4.0","v1.4.1","v2.0.0","v2.0.1","v2.0.2","v2.1.0","v3.0.0","v3.0.1","v3.0.2","v3.0.3","v3.0.4","v3.0.5","v4.0.0","v4.1.0","v5.0.0","v5.0.1","v5.1.0","v5.1.1","v6.0.0","v6.0.1","v7.0.0","v7.0.1","v7.0.2","v7.0.3","v7.0.4","v7.0.5","v7.0.6","v7.0.7"],"fixed":["7.2.3"]}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2021-36788","https://github.com/Yoast/Yoast-SEO-for-TYPO3/commit/a8278dae97dce8cd0722d38f7f5a30b563668590","https://github.com/Yoast/Yoast-SEO-for-TYPO3","https://typo3.org/security/advisory/typo3-ext-sa-2021-012"],"sources":[{"name":"OSV","id":"GHSA-28w5-j8xj-2xwc","modified":"2023-11-08T04:06:16.613887Z","url":"https://osv.dev/vulnerability/GHSA-28w5-j8xj-2xwc"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4}]}