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SCA: security update for org.xwiki.contrib.plantuml:macro-plantuml-macro (GHSA-42fc-7w97-8vrc)

medium Tenable Self-Hosted Container Security Plugin ID 441231

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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.
 (CVE-2026-42140)

Solution

Update the org.xwiki.contrib.plantuml:macro-plantuml-macro library and its related packages to version 2.4.1 or later.

See Also

https://github.com/advisories/GHSA-42fc-7w97-8vrc

Plugin Details

Severity: Medium

ID: 441231

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 5/6/2026

Updated: 6/22/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.36

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Low

Base Score: 3.6

Temporal Score: 2.7

Vector: CVSS2#AV:N/AC:H/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2026-42140

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/5/2026

Vulnerability Publication Date: 5/4/2026

Reference Information

CVE: CVE-2026-42140

cwe: CWE-918