{"id":"CVE-2026-86738","aliases":["EUVD-2026-72874","GHSA-hxfh-ccwg-qrc6","GHSA-pvcw-mp8q-mj39"],"status":"published","title":"Snipe-IT before 8.7.0 CSS Injection via Custom CSS","description":"Snipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due to incomplete sanitization that reverses HTML encoding on greater-than and double-quote characters. Superusers can plant malicious CSS payloads using @import and url() references to exfiltrate CSRF tokens from other superusers via attribute-selector rules, enabling account takeover.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00487,"percentile":0.42449,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-08T15:14:06Z","modified":"2026-10-28T02:30:34Z","products":[{"vendor":"grokability","product":"snipe-it"},{"vendor":"grokability, inc.","product":"snipe-it"},{"vendor":"snipeitapp","product":"snipe-it"}],"references":[{"url":"https://github.com/grokability/snipe-it/security/advisories/GHSA-pvcw-mp8q-mj39","tags":["vendor-advisory","Patch","Vendor Advisory","advisory"]},{"url":"https://github.com/grokability/snipe-it/commit/d26d71688359707f3b257fc04fe6c3e5a17405f9","tags":["patch","Patch","fix"]},{"url":"https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-css-injection-via-custom-css","tags":["third-party-advisory","Patch","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86738","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hxfh-ccwg-qrc6"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86738.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-86738","title":"Snipe-IT before 8.7.0 CSS Injection via Custom CSS","description":"Snipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due to incomplete sanitization that reverses HTML encoding on greater-than and double-quote characters. Superusers can plant malicious CSS payloads using @import and url() references to exfiltrate CSRF tokens from other superusers via attribute-selector rules, enabling account takeover.","status":"published","published":"2026-09-08T15:14:06.446Z","modified":"2026-09-08T15:30:34.12Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:49:42.666099Z"}],"euvd":[{"id":"EUVD-2026-72874","description":"Snipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due to incomplete sanitization that reverses HTML encoding on greater-than and double-quote characters. Superusers can plant malicious CSS payloads using @import and url() references to exfiltrate CSRF tokens from other superusers via attribute-selector rules, enabling account takeover.","status":"published","published":"2026-09-08T15:14:06Z","modified":"2026-09-08T15:30:34Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:28:28.997972Z"}],"ghsa":[{"id":"GHSA-hxfh-ccwg-qrc6","title":"Snipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due...","description":"Snipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due to incomplete sanitization that reverses HTML encoding on greater-than and double-quote characters. Superusers can plant malicious CSS payloads using @import and url() references to exfiltrate CSRF tokens from other superusers via attribute-selector rules, enabling account takeover.","status":"published","published":"2026-09-08T18:31:54Z","modified":"2026-09-08T18:32:01Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:11:29.303164Z"}],"nvd":[{"id":"CVE-2026-86738","description":"Snipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due to incomplete sanitization that reverses HTML encoding on greater-than and double-quote characters. Superusers can plant malicious CSS payloads using @import and url() references to exfiltrate CSRF tokens from other superusers via attribute-selector rules, enabling account takeover.","status":"published","published":"2026-09-08T16:18:36.98Z","modified":"2026-09-09T13:06:27.157Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:44.436435Z"}],"osv":[{"id":"CVE-2026-86738","title":"Snipe-IT before 8.7.0 CSS Injection via Custom CSS","description":"Snipe-IT versions before 8.7.0 contain a CSS injection vulnerability in the Custom CSS field due to incomplete sanitization that reverses HTML encoding on greater-than and double-quote characters. Superusers can plant malicious CSS payloads using @import and url() references to exfiltrate CSRF tokens from other superusers via attribute-selector rules, enabling account takeover.","status":"published","published":"2026-09-08T15:14:06.446Z","modified":"2026-10-28T02:30:34.911624759Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:19.210277Z"}]}}