CVE-2023-29526
Published: 19 April 2023
Summary
CVE-2023-29526 is a critical-severity Injection (CWE-74) vulnerability in Xwiki Xwiki. Its CVSS base score is 9.9 (Critical).
Operationally, ranked in the top 4.0% 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 is affected by CVE-2023-29526, a code injection flaw (CWE-74) that permits unauthorized display of or interaction with restricted pages. The root cause is insufficient isolation when the async and display macros are placed inside user comments; these macros are executed at view time in the context of the application server.
An authenticated user who can post comments can therefore leverage the macros to bypass access controls and obtain code execution privileges on the server, resulting in complete loss of confidentiality, integrity, and availability. The vulnerability carries a CVSS 3.1 score of 9.9 and is exploitable remotely with low attack complexity.
Public advisories hosted on GitHub and the XWiki Jira tracker state that the issue is resolved in XWiki 15.0-rc-1, 14.10.3, 14.4.8, and 13.10.11; administrators are advised to upgrade because no workarounds exist. The associated EPSS score has remained flat at 0.2251 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-1312
Vulnerability details
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions it's possible to display or interact with any page a user cannot access through the combination of the async and…
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display macros. A comment with either macro will be executed when viewed providing a code injection vector in the context of the running server. This vulnerability has been patched in XWiki 15.0-rc-1, 14.10.3, 14.4.8, and 13.10.11. Users are advised to upgrade. There are no known workarounds for this issue.
- 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.
Developer assessments and testing (including injection-focused techniques) identify improper neutralization of special elements, and the verifiable flaw remediation corrects them pre-deployment.
Identifies indicators of injection attacks (command, SQL, LDAP, etc.) via anomaly and attack monitoring.