How severe is CVE-2025-50977?

CVE-2025-50977 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-50977 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-50977?

CVE-2025-50977 affects Gitblit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-50977?

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

Does CVE-2025-50977 have an EU (EUVD) identifier?

Yes. CVE-2025-50977 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25909.

When was CVE-2025-50977 published?

CVE-2025-50977 was published on 2025-08-27 and last updated on 2026-06-17.

CVE-2025-50977

CVE-2025-50977 is a medium-severity vulnerability in Gitblit with a CVSS 3.x base score of 6.1. 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: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25909
Weakness: CWE-79
Affected product: Gitblit
Published: 2025-08-27
Last modified: 2026-06-17

Description

A template injection vulnerability leading to reflected cross-site scripting (XSS) has been identified in version 1.7.1, requiring authenticated admin access for exploitation. The vulnerability exists in the 'r' parameter and allows attackers to inject malicious Angular expressions that execute JavaScript code in the context of the application. The flaw can be exploited through GET requests to the summary endpoint as well as POST requests to specific Wicket interface endpoints, though the GET method provides easier weaponization. This vulnerability enables authenticated administrators to execute arbitrary client-side code, potentially leading to session hijacking, data theft, or further privilege escalation attacks.

Frequently asked questions

What is CVE-2025-50977?: A template injection vulnerability leading to reflected cross-site scripting (XSS) has been identified in version 1.7.1, requiring authenticated admin access for exploitation. The vulnerability exists in the 'r' parameter and allows attackers to inject malicious Angular expressions that execute JavaScript code in the context of the application. The flaw can be exploited through GET requests to the summary endpoint as well as POST requests to specific Wicket interface endpoints, though the GET method provides easier weaponization. This vulnerability enables authenticated administrators to execute arbitrary client-side code, potentially leading to session hijacking, data theft, or further privilege escalation attacks.
How severe is CVE-2025-50977?: CVE-2025-50977 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-50977 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-50977?: CVE-2025-50977 affects Gitblit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-50977?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-50977 have an EU (EUVD) identifier?: Yes. CVE-2025-50977 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25909.
When was CVE-2025-50977 published?: CVE-2025-50977 was published on 2025-08-27 and last updated on 2026-06-17.

References

https://github.com/4rdr/proofs/blob/main/info/gitblit-v1.7.1-reflected-XSS-via-angularjs-expression.md

Affected products (1)

cpe:2.3:a:gitblit:gitblit:1.7.1:*:*:*:*:*:*:*

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