RCE in Jeesite
CVE-2025-9796
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Jeesite
- Thinkgem Jeesite — versions 5.12.0, 5.12.1, 5.13.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/thinkgem/jeesite5/issues/33 (issue-tracking, Exploit, Issue Tracking)
- github.com/thinkgem/jeesite5/issues/33 (issue-tracking, Exploit, Issue Tracking)
- github.com/thinkgem/jeesite5/issues/33 (issue-tracking, Exploit, exploit, Issue Tracking)
- github.com/thinkgem/jeesite5/commit/63773c97a56bdb3649510e83b66c16db4754965b (Patch, patch)
- github.com/thinkgem/jeesite5/releases/tag/v5.13.0.springboo3 (Release Notes, patch)
Frequently asked questions
- What is CVE-2025-9796?
- CVE-2025-9796 is a low-severity vulnerability in Jeesite, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2025-09-01.
- How severe is CVE-2025-9796?
- Low severity. CVSS v3 base score is 3.5 out of 10.
- Is CVE-2025-9796 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.