RCE in Y Project Ruoyi
CVE-2026-108802
A weakness has been identified in y_project RuoYi up to 4.8.3. This affects the function renderDrawer of the file /system/dict/data/add of the component Dictionary Data Drawer Preview. Executing a manipulation of the argument cssClass can lead to cross site scripting. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Y Project Ruoyi — versions 4.8.0, 4.8.1, 4.8.2
Weakness classification (CWE)
References
- vuldb.com/vuln/416579 (technical-description, vdb-entry)
- vuldb.com/vuln/416579/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-108802 (third-party-advisory)
- vuldb.com/submit/962540 (third-party-advisory)
- github.com/Bob-wentao/security-report-for-ruoyi-dictionary-preview-stored-xss (related)
- github.com/Bob-wentao/security-report-for-ruoyi-dictionary-preview-stored-xss/t… (exploit)
Frequently asked questions
- What is CVE-2026-108802?
- CVE-2026-108802 is a low-severity vulnerability in Y Project Ruoyi, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-10-12.
- How severe is CVE-2026-108802?
- Low severity. CVSS v3 base score is 3.5 out of 10.