Superadmin code execution via discarded restricted context
Published Mar 2, 2023 · Updated Mar 5, 2025
Improper access control in XWiki Platform allows remote authenticated users with comment rights to execute wiki content as superadmin. The async renderer creates a new TransformationContext with restricted set to false instead of propagating the comment's restricted context. Comment permission therefore suffices to run dangerous macros, including Groovy code, with superadmin authority and compromise wiki confidentiality, integrity, and availability.
Summary
What happened
Improper access control in XWiki Platform allows remote authenticated users with comment rights to execute wiki content as superadmin. The async renderer creates a new TransformationContext with restricted set to false instead of propagating the comment's restricted context. Comment permission therefore suffices to run dangerous macros, including Groovy code, with superadmin authority and compromise wiki confidentiality, integrity, and availability.
The record
- CVE
- CVE-2023-26471
- Published
- Mar 2, 2023
- Updated
- Mar 5, 2025
- Vendor
- CryptPad
- Product
- XWiki Platform
- Classifications
- CWE-284, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 2, 2023CVE publishedPublication date reported by the CVE source.
- Mar 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 11.6-rc-1, < 13.10.10
- Affected versionversion=>= 14.0, < 14.4.6
- Affected versionversion=>= 14.5, < 14.9
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream async and Groovy macro proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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