Cross-Site Scripting Vulnerability in heyewei JFinalCMS 5.0.0
CVE-2026-2200

4.8MEDIUM

Key Information:

Vendor

Heyewei

Status
Jfinalcms
Vendor
CVE Published:
9 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2200?

A weakness has been discovered in heyewei JFinalCMS 5.0.0, specifically in the API Endpoint's save function located at /admin/admin/save. This vulnerability allows attackers to perform cross-site scripting (XSS) attacks, which can be executed remotely. Publicly available exploit vectors have been identified, making this a significant concern for users of the affected version. Proper input validation and output encoding mechanisms are essential to mitigate the risk associated with this vulnerability.

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Affected Version(s)

JFinalCMS 5.0.0

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-2026-2200 - Proof of Concept

References

https://vuldb.com/?id.344903
vdb-entry
https://vuldb.com/?ctiid.344903
signaturepermissions-required
https://vuldb.com/?submit.750098
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

chonger123 (VulDB User)
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