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CVE

CVE-2025-66562

TUUI vulnerable to Remote Code Execution (RCE) via XSS in Markdown ECharts Rendering
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CVE

CVE-2025-66562

TUUI vulnerable to Remote Code Execution (RCE) via XSS in Markdown ECharts Rendering

TUUI is a desktop MCP client designed as a tool unitary utility integration. Prior to 1.3.4, a critical Remote Code Execution (RCE) vulnerability exists in Tuui due to an unsafe Cross-Site Scripting (XSS) flaw in the Markdown rendering component. Tuui allows the execution of arbitrary JavaScript within ECharts code blocks. Combined with an exposed IPC interface that allows spawning processes, an attacker can execute arbitrary system commands on the victim's machine simply by having them view a malicious Markdown message. This vulnerability is fixed in 1.3.4.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.9
-
4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/AI-QL/tuui/commit/f673fa5b4d76e8236c7d9506d0727875cfa79cc1, https://github.com/AI-QL/tuui/releases/tag/v1.3.4, https://github.com/AI-QL/tuui/security/advisories/GHSA-qjhq-rgmr-6c3g, https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66562.json, https://nvd.nist.gov/vuln/detail/CVE-2025-66562

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.00415%
EPSS Percentile
0.61095%
Introduced Version
0
Fix Available
1b2fb4fc25713037daab5f80c4e5e3bc72abc029

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