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CVE-2025-46558

Xwiki cross-site scripting (XSS)

9.0 CRITICALPublic exploitEPSS 0.48%
  1. Published30 Apr 2025

Description

XWiki Contrib's Syntax Markdown allows importing Markdown content into wiki pages and creating wiki content in Markdown. In versions starting from 8.2 to before 8.9, the Markdown syntax is vulnerable to cross-site scripting (XSS) through HTML. In particular, using Markdown syntax, it's possible for any user to embed Javascript code that will then be executed on the browser of any other user visiting either the document or the comment that contains it. In the instance that this code is executed by a user with admins or programming rights, this issue compromises the confidentiality, integrity and availability of the whole XWiki installation. This issue has been patched in version 8.9.

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≥ 8.2 < 8.9

Remediation

Fixed in
Xwiki≥ 8.9

References

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Frequently asked

Is CVE-2025-46558 being actively exploited?

CVE-2025-46558 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.48%.

How severe is CVE-2025-46558?

CVE-2025-46558 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 0.48% probability of exploitation.

Which products are affected by CVE-2025-46558?

Affected products include Xwiki.

How do I fix CVE-2025-46558?

Upgrade affected software to a fixed version, for example Xwiki 8.9 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-46558 against the real software inventory on every managed device, as each hourly inventory arrives. 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.