phpThumb up to 1.7.23 Parameter phpthumb.gif.php gif_outputAsJpeg os command injection

Summaryinfo

A vulnerability described as critical has been identified in phpThumb up to 1.7.23. Affected by this issue is the function gif_outputAsJpeg of the file phpthumb.gif.php of the component Parameter Handler. Executing a manipulation can lead to os command injection. The identification of this vulnerability is CVE-2025-52994. The attack may be launched remotely. There is no exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability has been found in phpThumb up to 1.7.23 and classified as critical. This vulnerability affects the function gif_outputAsJpeg of the file phpthumb.gif.php of the component Parameter Handler. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2025-52994 since 06/23/2025. The exploitation appears to be difficult. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

By approaching the search of inurl:phpthumb.gif.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch cdcbc206ae601b15fd17e7aadf59df51149a0e82 is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Name

• phpThumb

Version

• 1.7.0
• 1.7.1
• 1.7.2
• 1.7.3
• 1.7.4
• 1.7.5
• 1.7.6
• 1.7.7
• 1.7.8
• 1.7.9
• 1.7.10
• 1.7.11
• 1.7.12
• 1.7.13
• 1.7.14
• 1.7.15
• 1.7.16
• 1.7.17
• 1.7.18
• 1.7.19
• 1.7.20
• 1.7.21
• 1.7.22
• 1.7.23

License

• open-source

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CPE 2.2info

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