{"id":"CVE-2021-3742","aliases":["EUVD-2021-27018","GHSA-gvwh-c4r7-8fm9"],"status":"published","title":"Server-Side Request Forgery (SSRF) in chatwoot/chatwoot","description":"A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.","severity":{"version":"3.0","score":7.9,"vector":"CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00397,"percentile":0.34215,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2024-11-15T10:51:25Z","modified":"2026-10-20T10:54:49Z","products":[{"vendor":"chatwoot","product":"chatwoot"},{"vendor":"chatwoot","product":"chatwoot/chatwoot"}],"references":[{"url":"https://huntr.com/bounties/1625472546121-chatwoot/chatwoot","tags":["Broken Link","web"]},{"url":"https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c","tags":["Product","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3742"},{"url":"https://github.com/advisories/GHSA-gvwh-c4r7-8fm9"}],"sources":{"cve":[{"id":"CVE-2021-3742","title":"Server-Side Request Forgery (SSRF) in chatwoot/chatwoot","description":"A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.","status":"published","published":"2024-11-15T10:51:25.968Z","modified":"2024-11-18T14:53:23.071Z","cvss":[{"version":"3.0","score":7.9,"vector":"CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"},{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-27018","description":"A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.","status":"published","published":"2024-11-15T10:51:25Z","modified":"2024-11-18T14:53:23Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:57.054288Z"}],"ghsa":[{"id":"GHSA-gvwh-c4r7-8fm9","title":"A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting...","description":"A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.","status":"published","published":"2024-11-15T12:31:44Z","modified":"2024-11-15T12:31:50Z","cvss":[{"version":"3.0","score":7.9,"vector":"CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:58:51.371243Z"}],"nvd":[{"id":"CVE-2021-3742","description":"A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.","status":"published","published":"2024-11-15T11:15:05.547Z","modified":"2026-06-17T04:05:40.683Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.0","score":7.9,"vector":"CVSS:3.0/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:07:08.629518Z"}],"osv":[{"id":"CVE-2021-3742","description":"A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.","status":"published","published":"2024-11-15T11:15:05.547Z","modified":"2026-10-20T10:54:49.181834732Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:20.434873Z"}]}}