CVE-2026-108802: Cross Site Scripting in y_project RuoYi
Description
CVE-2026-108802 is a cross-site scripting (XSS) vulnerability in y_project RuoYi affecting versions 4.8.0 through 4.8.3. The flaw exists in the renderDrawer function of the /system/dict/data/add component, where manipulation of the cssClass argument can lead to XSS. The vulnerability can be exploited remotely and public exploit code is available. The vendor has not responded to the disclosure. The CVSS 4.0 score is 5.1, indicating medium severity.
CVSS v4.0
Score 5.1medium
Affected software
y_project
RuoYi
cpe:2.3:a:ruoyi:ruoyi:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in y_project RuoYi up to version 4.8.3 allows remote attackers to perform cross-site scripting via the cssClass argument in the renderDrawer function of the Dictionary Data Drawer Preview component (/system/dict/data/add). The vulnerability arises from improper input handling that enables injection of malicious scripts. Public exploit code exists, increasing the risk of exploitation. The vendor has not issued a response or patch at the time of this report.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to session hijacking, defacement, or other client-side attacks. The vulnerability requires low attack complexity and no privileges but does require user interaction. The overall impact is medium severity as per CVSS 4.0 scoring.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or provided a fix, users should consider applying input validation or sanitization workarounds on the cssClass parameter to mitigate risk until an official patch is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-10-11T09:35:57.862Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acc713e2cdf04f656655119
Added to database: 10/12/2026, 05:33:50 UTC
Last enriched: 10/12/2026, 05:48:18 UTC
Last updated: 10/12/2026, 18:57:56 UTC
Views: 22
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