🛡️ CVE-2025-52994 — phpthumb

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: Low — an ordinary user account is enough.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Changed — a successful attack reaches components beyond the vulnerable one.
• Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: Low — limited, and the attacker does not choose what is affected.
• Availability impact: None.

Weakness class

CVE-2025-52994 is classified as CWE-78: OS Command Injection. Untrusted input reaches a shell command without neutralisation, so an attacker can run arbitrary operating system commands.

Affected software

CVE-2025-52994 is recorded against 2 packages.

• james-heinrich/phpthumb
• unknown

Timeline and source

Published on 11 July 2025. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)
safety-online.pl (Web)

Other advisories for this package

james-heinrich/phpthumb has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2013-6919 (published 17 May 2022)

Same weakness in other software

These advisories are the same class of weakness (CWE-78: OS Command Injection) in other software:

• CVE-2023-49900 (9.8 Critical, published 16 Jul 2026)
• CVE-2023-5002 (6.0 Medium, published 7 Jul 2026)
• CVE-2024-0815 (8.0 High, published 7 Jul 2026)
• CVE-2021-21386 (9.5 Critical, published 29 Jun 2026)
• CVE-2022-38649 (9.8 Critical, published 29 Jun 2026)
• CVE-2022-40189 (9.8 Critical, published 29 Jun 2026)
• CVE-2022-50994 (8.1 High, published 8 May 2026)
• CVE-2022-45899 (6.5 Medium, published 8 May 2026)

Details

Affected Packages

References