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CVE-2026-42140

MEDIUM · CVSS 4.4 EPSS 0.03% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-05-04 · Last synced: 2026-06-03

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Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-42140
Severity
MEDIUM
CVSS
4.4
EPSS
0.03%

Original NVD Description

PlantUML Macro is a macro for rendering UML diagrams from simple textual schemes. Prior to version 2.4.1, the PlantUML Macro is vulnerable to Server-Side Request Forgery (SSRF). The macro allows users to specify an alternative PlantUML server via the server parameter. However, the application does not validate the supplied URL. An attacker can supply an internal IP address or a malicious external URL. The XWiki server will attempt to connect to this URL to "render" the diagram. This issue has been patched in version 2.4.1.