Authorization Bypass in Light0011 CMS Chapter Controller
CVE-2026-85378

6.9MEDIUM

Key Information:

Vendor

Light0011

Status
Cms
Vendor
CVE Published:
3 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-85378?

A significant vulnerability exists in the Chapter Controller of Light0011 CMS, where an authorization bypass can be exploited remotely through the _initialize function in ChapterController.class.php. This flaw potentially allows unauthorized access to sensitive functions and data within the application. The maintainers were notified of this security issue, but there has been no response or patch provided. As such, organizations using this CMS should evaluate their security posture and implementation of access controls, especially since continuous updates do not clarify the current state of all product versions.

Affected Version(s)

cms c774dce31c6df0055568a8d5c53d964d99be199d

cms f72cf46f601efb2a0618c3814cc2f61380b38930

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-2026-85378 - Proof of Concept

References

https://vuldb.com/vuln/398532
vdb-entrytechnical-description
https://vuldb.com/vuln/398532/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-85378
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

catPWn (VulDB User)
VulDB CNA Team
.