How severe is CVE-2025-2123?

CVE-2025-2123 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-2123 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-2123?

CVE-2025-2123 affects Qbnz Geshi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-2123?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-2123 have an EU (EUVD) identifier?

Yes. CVE-2025-2123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7508.

When was CVE-2025-2123 published?

CVE-2025-2123 was published on 2025-03-09 and last updated on 2026-06-17.

CVE-2025-2123

CVE-2025-2123 is a low-severity vulnerability in Qbnz Geshi with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
CVSS v4: 5.1
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7508
Weakness: CWE-79
Affected product: Qbnz Geshi
Published: 2025-03-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-2123?: 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 severe is CVE-2025-2123?: CVE-2025-2123 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-2123 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-2123?: CVE-2025-2123 affects Qbnz Geshi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-2123?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-2123 have an EU (EUVD) identifier?: Yes. CVE-2025-2123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7508.
When was CVE-2025-2123 published?: CVE-2025-2123 was published on 2025-03-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:qbnz:geshi:*:*:*:*:*:*:*:*

More vulnerabilities in Qbnz Geshi

CVE-2012-3521 — Medium (CVSS 5.0): Multiple directory traversal vulnerabilities in the cssgen contrib module in GeSHi before 1.0.8.11 allow remote…
CVE-2012-3522 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in contrib/langwiz.php in GeSHi before 1.0.8.11 allows remote attackers to…

All CVEs affecting Qbnz Geshi →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →