# CVE-2026-81650: NextGEN Gallery < 4.5.0 - Authenticated Arbitrary File Upload via ZIP Import

> Authenticated users with gallery-management capabilities can upload arbitrary files via ZIP import, potentially leading to remote code execution.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A: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 Sep 2026
- **Updated:** 20 Sep 2026
- **Also known as:** GHSA-j73p-vqpx-6v96

## What is CVE-2026-81650?

CVE-2026-81650 is a high-severity vulnerability in Unknown Photo Gallery, Sliders, Proofing and Themes, published on 20 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The Photo Gallery, Sliders, Proofing and   WordPress plugin before 4.5.0 does not correctly validate the extensions of files extracted from an uploaded archive, due to a variable being reused as a loop counter so that the check always passes, allowing users granted its gallery-management capability by an administrator to write arbitrary files into a web-accessible directory and, on hosts that execute them, run arbitrary code.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2026-81650?


## How do I fix CVE-2026-81650?

No fix has been published for CVE-2026-81650 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81650 being exploited?

There is no known exploitation of CVE-2026-81650 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81650 and fix it if it is affected.

What it is: CVE-2026-81650 is a high-severity vulnerability in Unknown Photo Gallery, Sliders, Proofing and Themes, published on 20 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-81650 in the wild and no public exploit code.

Affected product: Unknown Photo Gallery, Sliders, Proofing and Themes. 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-2026-81650/ (Markdown: https://insights.sbomify.com/CVE-2026-81650/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81650
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81650
- OSV: https://osv.dev/vulnerability/CVE-2026-81650

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-81650/
Summaries are generated and may contain mistakes; the official description above is the record.