{"id":"CVE-2021-3758","aliases":["EUVD-2021-27031","GHSA-gj43-r55q-5h6r"],"status":"published","title":"Server-Side Request Forgery (SSRF) in bookstackapp/bookstack","description":"bookstack is vulnerable to Server-Side Request Forgery (SSRF)","severity":{"version":"3.0","score":6.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.008,"percentile":0.5683,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2021-09-02T12:06:27Z","modified":"2026-10-20T10:53:51Z","products":[{"vendor":"bookstackapp","product":"bookstack"},{"vendor":"bookstackapp","product":"bookstackapp/bookstack"}],"references":[{"url":"https://huntr.dev/bounties/a8d7fb24-9a69-42f3-990a-2db93b53f76b","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/bookstackapp/bookstack/commit/bee5e2c7ca637d034c6985c0328cef0ce068778e","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3758"},{"url":"https://github.com/advisories/GHSA-gj43-r55q-5h6r"}],"sources":{"cve":[{"id":"CVE-2021-3758","title":"Server-Side Request Forgery (SSRF) in bookstackapp/bookstack","description":"bookstack is vulnerable to Server-Side Request Forgery (SSRF)","status":"published","published":"2021-09-02T12:06:27Z","modified":"2024-08-03T17:09:08.264Z","cvss":[{"version":"3.0","score":6.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-27031","description":"bookstack is vulnerable to Server-Side Request Forgery (SSRF)","status":"published","published":"2021-09-02T12:06:27Z","modified":"2024-08-03T17:09:08Z","cvss":[{"version":"3.0","score":6.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T03:25:11.953192Z"}],"ghsa":[{"id":"GHSA-gj43-r55q-5h6r","title":"bookstack is vulnerable to Server-Side Request Forgery (SSRF)","description":"bookstack is vulnerable to Server-Side Request Forgery (SSRF)","status":"published","published":"2022-05-24T19:12:55Z","modified":"2023-01-30T05:01:54Z","cwes":["CWE-918"],"updated_at":"2026-11-02T14:46:30.744651Z"}],"nvd":[{"id":"CVE-2021-3758","description":"bookstack is vulnerable to Server-Side Request Forgery (SSRF)","status":"published","published":"2021-09-02T12:15:07.693Z","modified":"2026-06-17T04:05:42.573Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"3.0","score":6.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:06:58.05696Z"}],"osv":[{"id":"CVE-2021-3758","description":"bookstack is vulnerable to Server-Side Request Forgery (SSRF)","status":"published","published":"2021-09-02T12:15:07.693Z","modified":"2026-10-20T10:53:51.249848302Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:20.434873Z"}]}}