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CVE-2026-86738 Details

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.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.7 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/grokability/snipe-it/commit/d26d71688359707f3b257fc04fe6c3e5a17405f9	[email protected]	Patch
https://github.com/grokability/snipe-it/security/advisories/GHSA-pvcw-mp8q-mj39	[email protected]	PatchVendor Advisory
https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-css-injection-via-custom-css	[email protected]	PatchThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
snipeitapp snipe-it	>= 3.0.0, < 8.7.0
CPE cpe:2.3:a:snipeitapp:snipe-it:::::::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 9, 2026	Initial Analysis	[email protected]
Sep 8, 2026	New CVE Received	[email protected]
Sep 8, 2026	CVE Modified	CISA-ADP