CVE-2024-42489: Pro Macros Remote Code Execution via Viewpdf and similar macros

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-08-12 · updated 2026-06-17
Weakness: CWE-74

Description

Pro Macros provides XWiki rendering macros. Missing escaping in the Viewpdf macro allows any user with view right on the `CKEditor.HTMLConverter` page or edit or comment right on any page to perform remote code execution. Other macros like Viewppt are vulnerable to the same kind of attack. This vulnerability is fixed in 1.10.1.

Affected products

xwikisas xwiki-pro-macros: from 1.0 before 1.10.1 — fixed in 1.10.1

How to fix

Upgrade to a fixed version: xwikisas xwiki-pro-macros 1.10.1. Check the vendor advisory for mitigations.

References

https://github.com/xwikisas/xwiki-pro-macros/blob/main/xwiki-pro-macros-ui/src/main/resources/Confluence/Macros/Viewpdf.xml#L265-L267
https://github.com/xwikisas/xwiki-pro-macros/commit/199553c84901999481a20614f093af2d57970eba
https://github.com/xwikisas/xwiki-pro-macros/security/advisories/GHSA-cfq3-q227-7j65

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