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CVE

CVE-2025-67744

Mermaid XSS vulnerability leads to Remote Code Execution
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CVE

CVE-2025-67744

Mermaid XSS vulnerability leads to Remote Code Execution

DeepChat is an open-source artificial intelligence agent platform that unifies models, tools, and agents. Prior to version 0.5.3, a security vulnerability exists in the Mermaid diagram rendering component that allows arbitrary JavaScript execution. Due to the exposure of the Electron IPC renderer to the DOM, this Cross-Site Scripting (XSS) flaw escalates to full Remote Code Execution (RCE), allowing an attacker to execute arbitrary system commands. Two concurrent issues, unsafe Mermaid configuration and an exposed IPC interface, cause this issue. Version 0.5.3 contains a patch.

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
9.6
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/67xxx/CVE-2025-67744.json, https://github.com/ThinkInAIXYZ/deepchat/commit/b179d97921af04a0ae1ae68757338dd8b8cbefe7, https://github.com/ThinkInAIXYZ/deepchat/security/advisories/GHSA-w8w8-82pv-5rg9, https://nvd.nist.gov/vuln/detail/CVE-2025-67744

Severity

9.6

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.6
EPSS Probability
0.00171%
EPSS Percentile
0.38666%
Introduced Version
0
Fix Available
d92ef6481beb0a4923532e91c7d21f746bb5eec9

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