CVE-2025-2123
GeSHi XSS possible in the get_var function of /contrib/cssgen.php
3.5
LOW
CVSS 3.1
EPSS 0.19%
Description
A vulnerability, which was classified as problematic, has been found in GeSHi up to 1.0.9.1. Affected by this issue is the function get_var of the file /contrib/cssgen.php of the component CSS Handler. The manipulation of the argument default-styles/keywords-1/keywords-2/keywords-3/keywords-4/comments leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
How to fix CVE-2025-2123
To remediate CVE-2025-2123, upgrade the affected package to a fixed version below.
- —upgrade to 1.0.8.4-2 or later
- —no fix listed
Is CVE-2025-2123 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.0.8.4-2
- from 0, <= 1.0.9.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | LOW3.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N |