CVE-2026-86738

EUVD-2026-72874
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.7 HIGH
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 40.93%
Affected Products (NVD)
VendorProductVersion
snipeitappsnipe-it
3.0.0 ≤
𝑥
< 8.7.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/grokability/snipe-it/commit/d26d71688359707f3b257fc04fe6c3e5a17405f9
https://github.com/grokability/snipe-it/security/advisories/GHSA-pvcw-mp8q-mj39
https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-css-injection-via-custom-css