# CVE-2025-50977: Cross-site scripting in n/a

> Authenticated administrators can inject malicious Angular expressions via the 'r' parameter to execute arbitrary JavaScript, enabling session hijacking or data theft.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 27 Aug 2025
- **Updated:** 28 Aug 2025
- **Also known as:** GHSA-x76r-7j5r-85mv

## What is CVE-2025-50977?

CVE-2025-50977 is a medium-severity cross-site scripting vulnerability in n/a, published on 27 Aug 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-50977?

It affects 1 product.


Products: Gitblit Gitblit.

## How do I fix CVE-2025-50977?

No fix has been published for CVE-2025-50977 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-50977 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-50977 exists.

## Other vulnerabilities in n/a

- [CVE-2022-31267](https://insights.sbomify.com/CVE-2022-31267/): Unescaped control characters in Gitblit (critical 9.8)
- [CVE-2022-31268](https://insights.sbomify.com/CVE-2022-31268/): Path traversal in Gitblit (high 7.5)
- [CVE-2025-50978](https://insights.sbomify.com/CVE-2025-50978/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-50977 and fix it if it is affected.

What it is: CVE-2025-50977 is a medium-severity cross-site scripting vulnerability in n/a, published on 27 Aug 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-50977 exists.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-50977/ (Markdown: https://insights.sbomify.com/CVE-2025-50977/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-50977
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-50977
- OSV: https://osv.dev/vulnerability/CVE-2025-50977

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-50977/
Summaries are generated and may contain mistakes; the official description above is the record.