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CVE-2024-55877

Xwiki remote code execution

9.9 CRITICALEPSS 1.60%
  1. Published12 Dec 2024

Description

XWiki Platform is a generic wiki platform. Starting in version 9.7-rc-1 and prior to versions 15.10.11, 16.4.1, and 16.5.0, any user with an account can perform arbitrary remote code execution by adding instances of `XWiki.WikiMacroClass` to any page. This compromises the confidentiality, integrity and availability of the whole XWiki installation. This vulnerability has been fixed in XWiki 15.10.11, 16.4.1 and 16.5.0. It is possible to manually apply the patch to the page `XWiki.XWikiSyntaxMacrosList` as a workaround.

CVSS 3.1 breakdown

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

Affected products

Xwiki≥ 16.0.0 < 16.4.1 · ≥ 9.7 < 15.10.11 · 16.5.0

Remediation

Fixed in
Xwiki≥ 16.4.1

Frequently asked

Is CVE-2024-55877 being actively exploited?

CVE-2024-55877 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.60%.

How severe is CVE-2024-55877?

CVE-2024-55877 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 1.60% probability of exploitation.

Which products are affected by CVE-2024-55877?

Affected products include Xwiki.

How do I fix CVE-2024-55877?

Upgrade affected software to a fixed version, for example Xwiki 16.4.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-55877 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.