CVE-2026-16953 AI Engine < 3.6.4 - Unauthenticated Cross-Session Chatbot File Deletion via Forgeable Session Cookie
Medium 4.8
Published
Updated
Check this codebase for CVE-2026-16953 and fix it if it is affected.
What it is: CVE-2026-16953 is a medium-severity vulnerability in Unknown AI Engine, published on 8 Aug 2026.
Exploitation: There is no known exploitation of CVE-2026-16953 in the wild and no public exploit code.
Affected product: Unknown AI Engine. 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-2026-16953/ (Markdown: https://insights.sbomify.com/CVE-2026-16953/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-16953?
CVE-2026-16953 is a medium-severity vulnerability in Unknown AI Engine, published on 8 Aug 2026.
Official description
The AI Engine WordPress plugin before 3.6.4 does not verify ownership of a guest's uploaded chatbot files before deletion, authorising the action solely by a client-supplied session cookie value, so an unauthenticated attacker who obtains a victim's session identifier and file reference can delete that victim's uploaded files.
Weakness: CWE-639
Which versions are affected by CVE-2026-16953?
How do I fix CVE-2026-16953?
No fix has been published for CVE-2026-16953 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16953 being exploited?
There is no known exploitation of CVE-2026-16953 in the wild and no public exploit code.
Sources
Also known as GHSA-rv7j-gq5m-787c.