CVE-2024-52300: macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js

Q: How do I fix CVE-2024-52300?

pdf viewer macro: upgrade to 2.5.6. Exact commands for each OS are on this page.

Q: Is CVE-2024-52300 being exploited?

CVE-2024-52300 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-52300 affect?

CVE-2024-52300 affects pdf viewer macro. Severity is critical (CVSS 9.0). macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. The width parameter of the PDF viewer macro isn't properly escaped, allowing XSS for any user who can edit a page. XSS can impact the confidentiality, integrity and avail

Q: How urgent is CVE-2024-52300?

Priority 41/100. Critical severity

This month

CRITICAL 9.0UPGRADE

CVE-2024-52300 is a critical-severity flaw (CVSS 9.0) affecting pdf viewer macro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. The width parameter of the PDF viewer macro isn't properly escaped, allowing XSS for any user who can edit a page. XSS can impact the confidentiality, integrity and availability of the whole XWiki installation when an admin visits the page with the malicious code. This is fixed in 2.5.6.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-80, CWE-79
Published	2024-11-13
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: xwiki

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-13 16:15 UTCPublished CVE record published
2026-06-17 08:06 UTCUpdated Record last modified

xwiki pdf viewer macro UPGRADE

Affected: < 2.5.6

Fixed in: 2.5.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pdf-viewer-macro || rpm -q pdf-viewer-macro || pdf-viewer-macro --version

2. UPGRADE to 2.5.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pdf-viewer-macro

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pdf-viewer-macro

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-52300?

pdf viewer macro: upgrade to 2.5.6. Exact commands for each OS are on this page.

Is CVE-2024-52300 being exploited?

CVE-2024-52300 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-52300 affect?

CVE-2024-52300 affects pdf viewer macro. Severity is critical (CVSS 9.0). macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. The width parameter of the PDF viewer macro isn't properly escaped, allowing XSS for any user who can edit a page. XSS can impact the confidentiality, integrity and avail

How urgent is CVE-2024-52300?

Priority 41/100. Critical severity

Related CVEs

CVE-2024-52299 HIGH 7.5 UPGRADE macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js
CVE-2024-52298 HIGH 7.5 UPGRADE macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js

References

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