Unauthenticated Access Vulnerability in MPCX Lightbox Plugin for WordPress
CVE-2026-87848

3.7LOW

Key Information:

Vendor

WordPress
Status
Mpcx Lightbox
Vendor
CVE Published:
23 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-87848?

The MPCX Lightbox plugin for WordPress, versions 1.2.2 to 1.2.5, is vulnerable due to a lack of authorization on one of its AJAX actions, which is accessible to unauthenticated users. This allows unauthorized visitors to access sensitive information, including titles, content, excerpts, and other details of posts, regardless of their status—be it private, draft, pending, trashed, or password-protected. Site administrators should take immediate action to mitigate this risk.

Affected Version(s)

MPCX Lightbox 1.2.2 <= 1.2.5

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-2026-87848 - Proof of Concept

References

https://wpscan.com/vulnerability/183ec34f-446f-481f-9019-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Brian Willows
WPScan
.