thinkgem JeeSite EncodeUtils.java decodeUrl2 cross site scripting
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Cross-site scripting, Code execution
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.
Summary
A vulnerability was found in thinkgem JeeSite up to 5.12.1. This affects the function decodeUrl2 of the file common/src/main/java/com/jeesite/common/codec/EncodeUtils.java. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 5.13.0 mitigates this issue. The patch is identified as 63773c97a56bdb3649510e83b66c16db4754965b. Upgrading the affected component is recommended.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA JeeSite (thinkgem) Fixed in 5.13.0
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9796
- 2026-10-03 Alias added: GHSA-66x5-jrc5-2whj
References
Exploit 3
More thinkgem Jeesite vulnerabilities
- TI-2023-17334 Jeesite before commit 10742d3 was discovered to contain a SQL injection vulnerability via… CVSS 3.1CRITICAL 9.8
- TI-2023-20231 An issue in the delete function in the ActModelController class of jeesite v1.2.6 allows… CVSS 3.1MEDIUM 5.4
- TI-2025-07188 thinkgem JeeSite FileUploadController.java upload unrestricted upload CVSS 4.0MEDIUM 5.3
- TI-2025-07110 thinkgem JeeSite SsoController.java sso redirect CVSS 4.0MEDIUM 5.3
- TI-2025-07088 thinkgem JeeSite Site Controller SiteController.java select redirect CVSS 4.0MEDIUM 5.3
- TI-2025-07084 thinkgem JeeSite UEditor Image Grabber ActionEnter.java server-side request forgery CVSS 4.0MEDIUM 5.3
Sources
- CVE-2025-9796 · CVE Program
- CVE-2025-9796 · NVD
- FIRST EPSS
- GHSA-66x5-jrc5-2whj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences