CVE-2026-42140

MEDIUM

4.4

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.

Details CVE

Score CVSS v3.14.4

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie5/4/2026

Derniere modification5/4/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-918

References

https://github.com/xwiki-contrib/macro-plantuml/commit/c8b19bda93058794e04c8862fc7ca85c59b5fe5c(security-advisories@github.com)

https://github.com/xwiki-contrib/macro-plantuml/security/advisories/GHSA-42fc-7w97-8vrc(security-advisories@github.com)

https://jira.xwiki.org/browse/PLANTUML-25(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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