Cross-Site Scripting Vulnerability in gougucms by Gougu
CVE-2026-5249

5.1MEDIUM

Key Information:

Vendor

Gougu

Status
Gougucms
Vendor
CVE Published:
1 April 2026

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2026-5249?

A cross-site scripting vulnerability exists in gougucms version 4.08.18, specifically impacting the Record Endpoint's record.html file. This vulnerability arises from improper handling of user-controlled input in the content argument, allowing malicious actors to inject and execute arbitrary scripts remotely. The potential for exploitation has been publicly disclosed, and despite early notification to the vendor, there has been no response. This flaw presents a significant risk to users and could lead to unauthorized access or data leakage.

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Affected Version(s)

gougucms 4.08.18

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-2026-5249 - Proof of Concept

References

https://vuldb.com/vuln/354430
vdb-entrytechnical-description
https://vuldb.com/vuln/354430/cti
signaturepermissions-required
https://vuldb.com/submit/780716
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

thinhnee (VulDB User)
VulDB
JSON
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