Path Traversal Vulnerability in Sanluan PublicCMS 6.202506.d
CVE-2026-3289

5.3MEDIUM

Key Information:

Vendor

Sanluan

Status
Publiccms
Vendor
CVE Published:
27 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3289?

A path traversal vulnerability exists in the Sanluan PublicCMS version 6.202506.d. The flaw resides in the saveMetadata function within the TemplateCacheComponent.java file, which manages template cache generation. An attacker can perform remote manipulation to exploit this weakness, potentially gaining unauthorized access to sensitive files within the server's filesystem. The public availability of exploit code exacerbates the risk, highlighting the urgent need for affected users to implement necessary security measures. Despite early notification to the vendor, there has been no response regarding remediation.

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Affected Version(s)

PublicCMS 6.202506.d

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-2026-3289 - Proof of Concept

References

https://vuldb.com/?id.348017
vdb-entrytechnical-description
https://vuldb.com/?ctiid.348017
signaturepermissions-required
https://vuldb.com/?submit.759109
third-party-advisory

CVSS V4

Score:
5.3
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

Saul1213 (VulDB User)
VulDB
JSON
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