CVE-2026-86738

HighCVSS 8.7/10Last modified Sep 9, 2026

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.

Metrics

CVSS 3.1 8.7/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
grokability	snipe-it	< 8.7.0

References

https://github.com/grokability/snipe-it/commit/d26d71688359707f3b257fc04fe6c3e5a17405f9Patch
https://github.com/grokability/snipe-it/security/advisories/GHSA-pvcw-mp8q-mj39Patch, Vendor Advisory
https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-css-injection-via-custom-cssPatch, Third Party Advisory

Timeline

Published: Sep 8, 2026
Last modified: Sep 9, 2026
NVD status: Analyzed

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