Weak Password Hash Vulnerability in light0011 CMS
CVE-2026-112026

6.3MEDIUM

Key Information:

Vendor

Light0011

Status
Cms
Vendor
CVE Published:
18 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-112026?

A security flaw has been identified in light0011 CMS that compromises the password hashing mechanism within the UserModel.class.php file. Specifically, the sha1 function used for hashing passwords allows for hashes to be generated with insufficient computational effort, rendering them vulnerable to brute force attacks. This vulnerability can be exploited remotely, but the overall complexity of executing such an attack remains high. Despite being disclosed publicly and reported to the project maintainers, no response has been received as of now. It is critical for users of this CMS to assess their security measures in light of this vulnerability.

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-2026-112026 - Proof of Concept

References

https://vuldb.com/vuln/421674
vdb-entrytechnical-description
https://vuldb.com/vuln/421674/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-112026
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

gscsd (VulDB User)
VulDB CNA Team
.