Path Traversal Vulnerability in Westboy CicadasCMS Backend Template Editor
CVE-2026-108790

5.1MEDIUM

Key Information:

Vendor

Westboy

Status
Cicadascms
Vendor
CVE Published:
12 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108790?

A security flaw has been identified in the Westboy CicadasCMS affecting the Backend Template Editor's TemplateController.save function. This vulnerability allows for manipulation that leads to path traversal, potentially enabling attackers to access unauthorized files from a remote location. As the exploit has been made publicly available, immediate attention is required to mitigate risks. Despite early notification, the vendor has not provided a response regarding this vulnerability, raising concerns about user safety.

Affected Version(s)

CicadasCMS 2431154dac8d0735e04f1fd2a3c3556668fc8dab

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-2026-108790 - Proof of Concept

References

https://vuldb.com/vuln/416569
vdb-entrytechnical-description
https://vuldb.com/vuln/416569/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108790
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:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

wenyouwen (VulDB User)
VulDB CNA Team
.