Cross Site Scripting Vulnerability in RuoYi by y_project
CVE-2026-108802

5.1MEDIUM

Key Information:

Vendor

Y Project

Status
Ruoyi
Vendor
CVE Published:
12 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108802?

A vulnerability has been discovered in RuoYi, affecting versions up to 4.8.3. The issue lies within the renderDrawer function of the Dictionary Data Drawer Preview component. A specially crafted argument for cssClass can lead to cross site scripting (XSS), allowing attackers to execute arbitrary scripts in the context of a user's session. This vulnerability can be exploited remotely, and details of the exploit were made public. Despite early disclosure attempts, y_project has not yet addressed the issue.

Affected Version(s)

RuoYi 4.8.0

RuoYi 4.8.1

RuoYi 4.8.2

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-2026-108802 - Proof of Concept

References

https://vuldb.com/vuln/416579
vdb-entrytechnical-description
https://vuldb.com/vuln/416579/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108802
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

bobtao666 (VulDB User)
VulDB CNA Team
.