CVE-2024-55877

Q: How do I fix CVE-2024-55877?

Upgrade xwiki to 16.4.1 or later.

Q: Is CVE-2024-55877 being actively exploited?

Not that we know of. CVE-2024-55877 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 73% of all scored CVEs.

Q: How severe is CVE-2024-55877?

CVE-2024-55877 has a CVSS v3 base score of 9.9, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2024-55877 affect?

Published advisories record a fix for xwiki (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALEPSS 73th pctl

9.9

CVSS v3

NVD

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.

CWE-96 CWE-94Code Injection

How to fix

Remediation Available

xwikiNVD

Affected:>= 16.0.0, < 16.4.1Fixed in:16.4.1CVE-2024-55877derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

1.56%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Patch1

github.com

Exploit1

jira.xwiki.org

Vendor Advisory1

github.com

Related Vulnerabilities

Other CWE-96 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-43938	High	8.8	26%	-	Fix
CVE-2024-37900	Medium	6.4	16%	-	Fix
CVE-2020-6144	Critical	9.8	6.2%	-	-
CVE-2020-6143	Critical	9.8	6.2%	-	-
CVE-2021-39115	High	7.2	4.5%	-	Fix
CVE-2022-0895	Critical	9.8	1.7%	-	Fix

Common questions

How do I fix CVE-2024-55877?

Upgrade xwiki to 16.4.1 or later.

Is CVE-2024-55877 being actively exploited?

Not that we know of. CVE-2024-55877 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 73% of all scored CVEs.

How severe is CVE-2024-55877?

CVE-2024-55877 has a CVSS v3 base score of 9.9, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2024-55877 affect?

Published advisories record a fix for xwiki (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-30.