{"id":"CVE-2021-21660","aliases":[],"url":"https://o3.security/vulnerability/CVE-2021-21660","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.","published":"2022-05-24T19:03:11Z","modified":"2024-02-16T08:08:05.982027Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"io.jenkins.plugins:markdown-formatter","fixedVersion":"0.2.0"}],"fix":{"url":"https://github.com/jenkinsci/markdown-formatter-plugin/commit/6b283a5bba3424fd5174b92e7ad8724cdbdf596c","label":"jenkinsci/markdown-formatter-plugin@6b283a5"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2024-02-16T08:08:05.982027Z"}}