# CVE-2026-60034: Joomla Extension - themexpert.com - Authenticated stored XSS in JMedia Extension < 1.6.0

> Authenticated attackers can inject malicious scripts via unsanitized SVG uploads in the JMedia extension, potentially compromising user sessions.

- **Severity:** Critical 9.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jul 2026
- **Updated:** 23 Jul 2026
- **Also known as:** GHSA-jr2x-pvg7-cmq5

## What is CVE-2026-60034?

CVE-2026-60034 is a critical cross-site scripting vulnerability in themexpert.com JMedia extension for Joomla, published on 20 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Joomla Extension - themexpert.com - Authenticated stored XSS in JMedia Extension < 1.6.0 - The Joomla extension JMedia is vulnerable to a stored XSS vulnerability. Unsanitised SVG uploads served without nosniff, leading to stored/reflected XSS.

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

## Which versions are affected by CVE-2026-60034?


## How do I fix CVE-2026-60034?

No fix has been published for CVE-2026-60034 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-60034 being exploited?

There is no known exploitation of CVE-2026-60034 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-60034 and fix it if it is affected.

What it is: CVE-2026-60034 is a critical cross-site scripting vulnerability in themexpert.com JMedia extension for Joomla, published on 20 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-60034 in the wild and no public exploit code.

Affected product: themexpert.com JMedia extension for Joomla. 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-2026-60034/ (Markdown: https://insights.sbomify.com/CVE-2026-60034/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-60034
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-60034
- OSV: https://osv.dev/vulnerability/CVE-2026-60034

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-60034/
Summaries are generated and may contain mistakes; the official description above is the record.