Cross Site Scripting Vulnerability in thinkgem JeeSite Product
CVE-2025-9796

5.1MEDIUM

Key Information:

Vendor

Thinkgem

Status
Jeesite
Vendor
CVE Published:
1 September 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9796?

A security flaw was identified in thinkgem JeeSite, specifically in the decodeUrl2 function of the EncodeUtils.java file. This vulnerability allows for cross site scripting attacks, enabling attackers to execute malicious scripts remotely. Users are at risk of exploitation, as the vulnerability has been made public. To prevent potential attacks, it is strongly recommended to upgrade to version 5.13.0, which includes the necessary patch.

Affected Version(s)

JeeSite 5.12.0

JeeSite 5.12.1

JeeSite 5.13.0

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-2025-9796 - Proof of Concept

References

https://vuldb.com/?id.322111
vdb-entrytechnical-description
https://vuldb.com/?ctiid.322111
signaturepermissions-required
https://vuldb.com/?submit.641125
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

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ZAST.AI (VulDB User)
.