Deserialization Vulnerability in slackero phpwcms Image Processing Function
CVE-2025-5499

6.9MEDIUM

Key Information:

Vendor

Slackero

Status
PHPwcms
Vendor
CVE Published:
3 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5499?

A deserialization vulnerability exists in the slackero phpwcms in the image_resized.php file, specifically within the is_file/getimagesize function. The flaw arises due to improper handling of the imgfile argument, potentially enabling an attacker to exploit this remotely. Given the public disclosure of this vulnerability, it poses a significant risk to systems running affected versions. Users are strongly advised to upgrade to phpwcms version 1.9.46 or 1.10.9 to mitigate this issue effectively.

Affected Version(s)

phpwcms 1.9.0

phpwcms 1.9.1

phpwcms 1.9.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-5499 - Proof of Concept

References

https://vuldb.com/?id.310914
vdb-entrytechnical-description
https://vuldb.com/?ctiid.310914
signaturepermissions-required
https://vuldb.com/?submit.578082
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dem0 (VulDB User)
.