Input Handling Flaw in Passster WordPress Plugin by Passster
CVE-2025-15489

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Passster
Vendor
CVE Published:
2 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15489?

The Passster WordPress plugin prior to version 4.2.24 has a significant input handling issue within its AJAX action operations. This flaw permits unauthenticated users to access and retrieve sensitive information from password-protected content, potentially exposing private data to unauthorized individuals. Therefore, it is crucial for users of this plugin to update to the latest version to safeguard against such unauthorized access.

Affected Version(s)

Passster 0 < 4.2.24

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-2025-15489 - Proof of Concept

References

https://wpscan.com/vulnerability/b1b4f64a-5bff-486e-a3e5-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alex Tselevich (nos3curity)
WPScan
.