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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Snipeitapp Snipe-It
cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:*
|
— |
8.7.0
|
References 3
https://github.com/grokability/snipe-it/commit/d26d71688359707f3b257fc04fe6c3e5…
disclosure@vulncheck.com
https://github.com/grokability/snipe-it/security/advisories/GHSA-pvcw-mp8q-mj39
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-css-injection-via-cu…
disclosure@vulncheck.com