Server-Side Request Forgery in Taisan Tarzan-CMS Affects User Data
CVE-2026-90710

6.9MEDIUM

Key Information:

Vendor

Taisan

Status
Tarzan-cms
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90710?

A vulnerability in Taisan Tarzan-CMS version 1.0.0 has been identified, affecting the Theme Download Function through the openConnection method. Malicious actors can exploit this vulnerability by manipulating the httpUrl argument, resulting in server-side request forgery (SSRF). This issue can be exploited remotely without requiring specialized access. The vulnerability has been publicly disclosed, and the vendor has been alerted, but no corrective action has been taken yet.

Affected Version(s)

tarzan-cms 1.0.0

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-2026-90710 - Proof of Concept

References

https://vuldb.com/vuln/403265
vdb-entrytechnical-description
https://vuldb.com/vuln/403265/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90710
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

mjh_123 (VulDB User)
VulDB CNA Team
.