CVE-2023-26480
Published: 02 March 2023
Summary
CVE-2023-26480 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Xwiki Xwiki. Its CVSS base score is 8.9 (High).
Operationally, ranked in the top 7.4% 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, a generic wiki platform, contains a stored cross-site scripting vulnerability in the Live Data macro that affects all versions starting from 12.10. The flaw is tracked as CWE-79 and carries a CVSS 3.1 score of 8.9, reflecting network-accessible attack vectors with low complexity and low privileges required.
An authenticated user lacking script rights can persist malicious script payloads via the macro, enabling execution in other users' browsers with the potential for high impact on confidentiality, integrity, and availability under the reflected scope change.
Public references, including the GitHub security advisory GHSA-32fq-m2q5-h83g and the linked XWiki Jira ticket XWIKI-20143, state that the issue is resolved in releases 14.9, 14.4.7, and 13.10.10; the associated commits detail the code changes that enforce proper escaping. No workarounds are documented.
The EPSS score remains flat at 0.0855 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-0840
Vulnerability details
XWiki Platform is a generic wiki platform. Starting in version 12.10, a user without script rights can introduce a stored cross-site scripting by using the Live Data macro. This has been patched in XWiki 14.9, 14.4.7, and 13.10.10. There are…
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no known workarounds.
- 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.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.