Deserialization Vulnerability in slackero phpwcms Custom Source Tab
CVE-2025-5498

5.1MEDIUM

Key Information:

Vendor

Slackero

Status
PHPwcms
Vendor
CVE Published:
3 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5498?

A deserialization vulnerability exists in the slackero phpwcms Custom Source Tab component that affects versions prior to 1.9.46 and 1.10.9. The flaw arises during the handling of the cpage_custom argument in the file include/inc_lib/content/cnt21.readform.inc.php, particularly within the file_get_contents and is_file functions. If exploited, this vulnerability allows remote attackers to manipulate data, leading to potential unauthorized actions and exposure. Users are strongly advised to upgrade their installations to mitigate the risk.

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-2025-5498 - Proof of Concept

References

https://vuldb.com/?id.310913
vdb-entrytechnical-description
https://vuldb.com/?ctiid.310913
signaturepermissions-required
https://vuldb.com/?submit.578054
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dem0 (VulDB User)
.
CVE-2025-5498 : Deserialization Vulnerability in slackero phpwcms Custom Source Tab