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CVE-2025-66024

Xwiki Blog Application cross-site scripting (XSS)

9.0 CRITICALPublic exploitEPSS 0.38%
  1. Published4 Mar 2026

Description

The XWiki blog application allows users of the XWiki platform to create and manage blog posts. Versions starting with 9.15 and prior to 9.15.7 are vulnerable to Stored Cross-Site Scripting (XSS) via the Blog Post Title. The vulnerability arises because the post title is injected directly into the HTML <title> tag without proper escaping. An attacker with permissions to create or edit blog posts can inject malicious JavaScript into the title field. This script will execute in the browser of any user (including administrators) who views the blog post. This leads to potential session hijacking or privilege escalation. The vulnerability has been patched in the blog application version 9.15.7 by adding missing escaping. No known workarounds are available.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected products

Xwiki Blog Application< 9.15.7

Remediation

Fixed in
Xwiki Blog Application≥ 9.15.7

References

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Frequently asked

Is CVE-2025-66024 being actively exploited?

CVE-2025-66024 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.38%.

How severe is CVE-2025-66024?

CVE-2025-66024 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 0.38% probability of exploitation.

Which products are affected by CVE-2025-66024?

Affected products include Xwiki Blog Application.

How do I fix CVE-2025-66024?

Upgrade affected software to a fixed version, for example Xwiki Blog Application 9.15.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-66024 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.