{"id":"CVE-2021-25987","aliases":["EUVD-2021-2565","GHSA-q54r-r9pr-w7qv"],"status":"published","title":"Hexo - Stored XSS","description":"Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.","severity":{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00339,"percentile":0.27672,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2021-11-30T13:50:09Z","modified":"2026-10-20T10:54:34Z","fixes":[{"ecosystem":"npm","package":"hexo","fixed_in":["6.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"hexo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.0.1"},{"last_affected":"5.4.0"},{"fixed":"6.0.0"}]}]},{"source":"osv","ecosystem":"npm","package":"hexo","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.1"},{"fixed":"6.0.0"}]}]}],"products":[{"vendor":"hexo","product":"hexo"}],"references":[{"url":"https://github.com/hexojs/hexo/commit/5170df2d3fa9c69e855c4b7c2b084ebfd92d5200","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25987","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25987","tags":["advisory"]},{"url":"https://github.com/hexojs/hexo/issues/4838","tags":["web"]},{"url":"https://github.com/hexojs/hexo/pull/4750","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q54r-r9pr-w7qv"},{"url":"https://github.com/hexojs/hexo","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-25987","title":"Hexo - Stored XSS","description":"Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.","status":"published","published":"2021-11-30T13:50:09Z","modified":"2025-04-30T15:44:20.648Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-2565","description":"Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.","status":"published","published":"2021-11-30T13:50:09Z","modified":"2025-04-30T15:44:20Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T20:51:59.026225Z"}],"ghsa":[{"id":"GHSA-q54r-r9pr-w7qv","title":"Hexo Vulnerable to XSS","description":"Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.","status":"published","published":"2021-12-01T18:27:44Z","modified":"2023-09-13T19:55:33Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:05.004935Z"}],"nvd":[{"id":"CVE-2021-25987","description":"Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.","status":"published","published":"2021-11-30T14:15:07.53Z","modified":"2026-06-17T03:42:44.23Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":1.9,"vector":"AV:L/AC:M/Au:N/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:07:01.811115Z"}],"osv":[{"id":"CVE-2021-25987","description":"Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.","status":"published","published":"2021-11-30T14:15:07.53Z","modified":"2026-10-20T10:54:34.504135055Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.778776Z"},{"id":"GHSA-q54r-r9pr-w7qv","title":"Hexo Vulnerable to XSS","description":"Hexo versions 0.0.1 to 5.4.0 are vulnerable against stored XSS. The post “body” and “tags” don’t sanitize malicious javascript during web page generation. Local unprivileged attacker can inject arbitrary code.","status":"published","published":"2021-12-01T18:27:44Z","modified":"2023-11-08T04:05:19.860339Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:54.055966Z"}]}}