CVE-2023-29518
Published: 19 April 2023
Summary
CVE-2023-29518 is a critical-severity Injection (CWE-74) vulnerability in Xwiki Xwiki. Its CVSS base score is 9.9 (Critical).
Operationally, ranked in the top 3.3% 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 contains an injection vulnerability (CWE-74) in the default Invitation.InvitationCommon page. Any user with view rights can supply input that bypasses escaping and executes arbitrary Groovy, Python, or Velocity code, resulting in full control of the XWiki installation. The flaw affects all versions prior to the listed fixes and carries a CVSS 3.1 score of 9.9.
An attacker with low-privileged network access can exploit the issue without user interaction to read, modify, or delete arbitrary data and execute system-level commands. Because the vulnerable page is installed by default, the attack surface includes any authenticated user granted basic view rights on a standard deployment.
Official patches are available in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11; the project states there are no known workarounds and recommends immediate upgrade. The associated EPSS score has remained flat at 0.2936 since disclosure, indicating steady but not sharply increasing exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-1369
Vulnerability details
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation.…
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The root cause is improper escaping of `Invitation.InvitationCommon`. This page is installed by default. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 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.