CVE-2024-55879
Published: 12 December 2024
Summary
CVE-2024-55879 is a critical-severity Missing Authorization (CWE-862) vulnerability in Xwiki Xwiki. Its CVSS base score is 9.1 (Critical).
Operationally, ranked in the top 4.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
XWiki Platform versions from 2.3 up to but not including 15.10.9 and 16.3.0 contain an authorization flaw tracked as CVE-2024-55879 and CWE-862. Any user granted script rights can instantiate the XWiki.ConfigurableClass object on an arbitrary page, which the platform then processes without further checks and thereby permits execution of attacker-supplied code on the server.
An authenticated attacker with script rights can therefore achieve full remote code execution, resulting in complete loss of confidentiality, integrity, and availability across the XWiki installation. The attack requires only network access and valid credentials with the script privilege; no user interaction or special network position is needed.
The GitHub Security Advisories and the linked XWiki Jira issue state that the flaw is fixed in releases 15.10.9 and 16.3.0; the project provides no other workaround and recommends immediate upgrade.
EPSS for the CVE rose from a low baseline to a peak of 0.4253 before receding to the current value of 0.2002, indicating that exploitation interest increased after public disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-3502
Vulnerability details
XWiki Platform is a generic wiki platform. Starting in version 2.3 and prior to versions 15.10.9, 16.3.0, any user with script rights can perform arbitrary remote code execution by adding instances of `XWiki.ConfigurableClass` to any page. This compromises the confidentiality,…
more
integrity and availability of the whole XWiki installation. This has been patched in XWiki 15.10.9 and 16.3.0. No known workarounds are available except upgrading.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring an access control policy ensures authorization checks are defined and applied for critical functions.
Reviews of access controls detect missing authorization checks on critical functions or resources.
Documenting permitted unauthenticated actions prevents missing authorization by making all exceptions explicit and subject to organizational review.
Requiring attribute association with information prevents authorization from being performed without necessary security or privacy context.
Mandating authorization prior to allowing remote connections addresses missing authorization for remote access.
Mandating authorization before wireless connections are allowed prevents missing authorization for wireless access.
The control requires authorization before allowing mobile device connections, directly mitigating missing authorization for system access.
Requiring approvals for account creation and specifying authorizations ensures authorization is not missing for system access.