# CVE-2025-10340: WhatCD Gazelle Commit Message change_log.php cross site scripting

> Remote attackers can inject malicious scripts via the commit message field in WhatCD Gazelle, potentially leading to session hijacking or code execution.

- **Severity:** Medium 5.1 (`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/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Sep 2025
- **Updated:** 15 Sep 2025
- **Also known as:** GHSA-f386-3v76-wcqq

## What is CVE-2025-10340?

CVE-2025-10340 is a medium-severity cross-site scripting vulnerability in WhatCD Gazelle, published on 13 Sep 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability was determined in WhatCD Gazelle up to 63b337026d49b5cf63ce4be20fdabdc880112fa3. The affected element is an unknown function of the file /sections/tools/managers/change_log.php of the component Commit Message Handler. Executing manipulation of the argument Message can lead to cross site scripting. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2025-10340?


## How do I fix CVE-2025-10340?

No fix has been published for CVE-2025-10340 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-10340 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-10340 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-10340 and fix it if it is affected.

What it is: CVE-2025-10340 is a medium-severity cross-site scripting vulnerability in WhatCD Gazelle, published on 13 Sep 2025. Any signed-in user can exploit it over the network, 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-2025-10340 exists.

Affected product: WhatCD Gazelle. 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-2025-10340/ (Markdown: https://insights.sbomify.com/CVE-2025-10340/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-10340
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-10340
- OSV: https://osv.dev/vulnerability/CVE-2025-10340

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-10340/
Summaries are generated and may contain mistakes; the official description above is the record.