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CVE-2025-53835

Xwiki cross-site scripting (XSS)

9.0 CRITICALEPSS 0.38%
  1. Published14 Jul 2025

Description

XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) into another syntax (XHTML, etc). Starting in version 5.4.5 and prior to version 14.10, the XHTML syntax depended on the `xdom+xml/current` syntax which allows the creation of raw blocks that permit the insertion of arbitrary HTML content including JavaScript. This allows XSS attacks for users who can edit a document like their user profile (enabled by default). This has been fixed in version 14.10 by removing the dependency on the `xdom+xml/current` syntax from the XHTML syntax. Note that the `xdom+xml` syntax is still vulnerable to this attack. As it's main purpose is testing and its use is quite difficult, this syntax shouldn't be installed or used on a regular wiki. There are no known workarounds apart from upgrading.

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≥ 5.4.5 < 14.10

Remediation

Fixed in
Xwiki≥ 14.10

References

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Frequently asked

Is CVE-2025-53835 being actively exploited?

CVE-2025-53835 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.38%.

How severe is CVE-2025-53835?

CVE-2025-53835 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-2025-53835?

Affected products include Xwiki.

How do I fix CVE-2025-53835?

Upgrade affected software to a fixed version, for example Xwiki 14.10 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-53835 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.