{"id":"GHSA-xqpp-26pp-2365","summary":"XSS vulnerability in Jenkins Markdown Formatter Plugin","details":"Jenkins Markdown Formatter Plugin 0.1.0 and earlier uses a Markdown library to parse Markdown that does not escape crafted link target URLs.\n\nThis results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to edit any description rendered using the configured markup formatter.\n\nJenkins Markdown Formatter Plugin 0.2.0 uses a different Markdown library that is not affected by this problem.","aliases":["CVE-2021-21660"],"modified":"2024-02-16T08:08:05.982027Z","published":"2022-05-24T19:03:11Z","database_specific":{"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2022-12-15T17:32:32Z","nvd_published_at":"2021-05-25T17:15:00Z","cwe_ids":["CWE-79"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21660"},{"type":"WEB","url":"https://github.com/jenkinsci/markdown-formatter-plugin/commit/6b283a5bba3424fd5174b92e7ad8724cdbdf596c"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/markdown-formatter-plugin"},{"type":"WEB","url":"https://www.jenkins.io/security/advisory/2021-05-25/#SECURITY-2198"},{"type":"WEB","url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-21660"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/05/25/3"}],"affected":[{"package":{"name":"io.jenkins.plugins:markdown-formatter","ecosystem":"Maven","purl":"pkg:maven/io.jenkins.plugins/markdown-formatter"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.0"}]}],"versions":["0.1.0"],"database_specific":{"last_known_affected_version_range":"\u003c= 0.1.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-xqpp-26pp-2365/GHSA-xqpp-26pp-2365.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}