# CVE-2025-2123: geshi: A vulnerability, which was classified as problematic, has been found in GeSHi up to 1.0.9.1

CVE-2025-2123 is fixed in geshi on 1 platform, first by DEBIAN-CVE-2025-2123, released March 9, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-2123
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0048
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 9, 2025

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | geshi Debian 12.15 (bookworm) | 1.0.8.4-2 | [DEBIAN-CVE-2025-2123](https://patchblox.com/security/data/fix/linux/debian-cve-2025-2123.md) | Mar 9, 2025 |
| Linux | geshi Debian 13.5 (trixie) | 1.0.8.4-2 | [DEBIAN-CVE-2025-2123](https://patchblox.com/security/data/fix/linux/debian-cve-2025-2123.md) | Mar 9, 2025 |
| Linux | geshi Debian 14 | 1.0.8.4-2 | [DEBIAN-CVE-2025-2123](https://patchblox.com/security/data/fix/linux/debian-cve-2025-2123.md) | Mar 9, 2025 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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