# CVE-2026-73329: CamaleonCMS Stored XSS via Draft Post Title Creation Endpoint

> Authenticated low-privileged users can execute arbitrary JavaScript in administrator browsers via unsanitized draft post titles, leading to session compromise.

- **Severity:** Critical 9.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N`)
- **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:** 12 Aug 2026
- **Updated:** 14 Aug 2026
- **Also known as:** GHSA-mf3v-84v4-vjjc

## What is CVE-2026-73329?

CVE-2026-73329 is a critical cross-site scripting vulnerability in owen2345 CamaleonCMS, published on 12 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

CamaleonCMS contains a stored cross-site scripting vulnerability that allows authenticated low-privileged users to execute arbitrary JavaScript in an administrator's browser by injecting unsanitized HTML payloads into the post title parameter during draft creation. Attackers can submit a malicious HTML payload as a draft title through the drafts creation endpoint, which is persisted to the database without escaping and later rendered as raw HTML in the admin drafts listing, enabling administrator session compromise, cookie theft, and forged authenticated requests.

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

## Which versions are affected by CVE-2026-73329?


## How do I fix CVE-2026-73329?

No fix has been published for CVE-2026-73329 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-73329 being exploited?

There is no known exploitation of CVE-2026-73329 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-73329 and fix it if it is affected.

What it is: CVE-2026-73329 is a critical cross-site scripting vulnerability in owen2345 CamaleonCMS, published on 12 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-73329 in the wild and no public exploit code.

Affected product: owen2345 CamaleonCMS. 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-2026-73329/ (Markdown: https://insights.sbomify.com/CVE-2026-73329/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-73329
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-73329
- OSV: https://osv.dev/vulnerability/CVE-2026-73329

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-73329/
Summaries are generated and may contain mistakes; the official description above is the record.