# CVE-2025-53488: Stored XSS in WikiHiero

> Stored XSS in WikiHiero allows attackers to inject scripts, potentially leading to code execution or account takeover.

- **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:** 7 Jul 2025
- **Updated:** 10 Jul 2025
- **Also known as:** GHSA-4fx8-qmwg-rwqv

## What is CVE-2025-53488?

CVE-2025-53488 is a medium-severity cross-site scripting vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension, published on 7 Jul 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

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension allows Stored XSS.This issue affects Mediawiki - WikiHiero Extension: from 1.43.X before 1.43.2.

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

## Which versions are affected by CVE-2025-53488?


## How do I fix CVE-2025-53488?

No fix has been published for CVE-2025-53488 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-53488 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53488 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-53488 and fix it if it is affected.

What it is: CVE-2025-53488 is a medium-severity cross-site scripting vulnerability in Wikimedia Foundation Mediawiki - WikiHiero Extension, published on 7 Jul 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-2025-53488 exists.

Affected product: Wikimedia Foundation Mediawiki - WikiHiero Extension. 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-2025-53488/ (Markdown: https://insights.sbomify.com/CVE-2025-53488/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-53488
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-53488
- OSV: https://osv.dev/vulnerability/CVE-2025-53488

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-53488/
Summaries are generated and may contain mistakes; the official description above is the record.