CVE-2023-29516: Code injection from view right on XWiki.AttachmentSelector in xwiki-platform
First published: Tue Apr 18 2023(Updated: )
### Impact Any user with view rights on `XWiki.AttachmentSelector` can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping in the "Cancel and return to page" button. This page is installed by default. See https://jira.xwiki.org/browse/XWIKI-20275 for the reproduction steps. ### Patches The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. ### Workarounds The issue can be fixed by applying this [patch](https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996) on `XWiki.AttachmentSelector`. ### References - https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996 - https://jira.xwiki.org/browse/XWIKI-20275 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xwiki Xwiki | <13.10.11 | |
| Xwiki Xwiki | >=14.0<14.4.8 | |
| Xwiki Xwiki | >=14.5<14.10.1 | |
| maven/org.xwiki.platform:xwiki-platform-attachment-ui | >=14.5<14.10.1 | 14.10.1 |
| maven/org.xwiki.platform:xwiki-platform-attachment-ui | >=14.0-rc-1<14.4.8 | 14.4.8 |
| maven/org.xwiki.platform:xwiki-platform-attachment-ui | >=2.0-rc-2<13.10.11 | 13.10.11 |
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Reference Links
- https://github.com/xwiki/xwiki-platform/commit/aca1d677c58563bbe6e35c9e1c29fd8b12ebb996
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-3989-4c6x-725f
- https://jira.xwiki.org/browse/XWIKI-20275
- https://nvd.nist.gov/vuln/detail/CVE-2023-29516
- https://github.com/advisories/GHSA-3989-4c6x-725f (Advisory)
Frequently Asked Questions
What is CVE-2023-29516?
CVE-2023-29516 is a vulnerability in XWiki Platform that allows any user with view rights on `XWiki.AttachmentSelector` to execute arbitrary code and gain full access to the XWiki installation.
How severe is CVE-2023-29516?
CVE-2023-29516 has a severity rating of 8.8 (critical).
What is the root cause of CVE-2023-29516?
The root cause of CVE-2023-29516 is improper access controls on `XWiki.AttachmentSelector`, allowing execution of arbitrary code.
Which versions of XWiki are affected by CVE-2023-29516?
XWiki versions up to and excluding 13.10.11, 14.0 up to and excluding 14.4.8, and 14.5 up to and excluding 14.10.1 are affected by CVE-2023-29516.
How can I fix CVE-2023-29516?
To fix CVE-2023-29516, upgrade XWiki to version 13.10.11, 14.4.8, or 14.10.1 or later.
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