Cross-site Scripting by SVG upload in xwiki-platform
Impact
When using default XWiki configuration, it's possible for an attacker to upload an SVG containing a script executed when executing the download action on the file.
Patches
This problem has been patched so that the default configuration doesn't allow to display the SVG files in the browser.
Workarounds
This issue can be fixed without the patch by setting properly the configuration to download or display files, see: https://www.xwiki.org/xwiki/bin/view/Documentation/AdminGuide/Attachments#HAttachmentdisplayordownload
References
https://jira.xwiki.org/browse/XWIKI-18368
For more information
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- Open an issue in Jira
- Email us at security ML
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.xwiki.platform:xwiki-platform-oldcore | < 12.10.6, >= 13.0, < 13.3RC1 | 12.10.6, 13.3RC1 |
| Java / Kotlin (Maven) | org.xwiki.platform:xwiki-platform-tool-configuration-resources | >= 13.0, < 13.3RC1, < 12.10.6 | 13.3RC1, 12.10.6 |
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9jq9-c2cv-pcrj
- https://nvd.nist.gov/vuln/detail/CVE-2021-43841
- https://github.com/xwiki/xwiki-platform/commit/5853d492b3a274db0d94d560e2a5ea988a271c62
- https://github.com/xwiki/xwiki-platform
- https://jira.xwiki.org/browse/XWIKI-18368
- https://www.xwiki.org/xwiki/bin/view/Documentation/AdminGuide/Attachments#HAttachmentdisplayordownload
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N- Weakness (CWE)
CWE-79- Platform
- Java / Kotlin (Maven)
- Package
org.xwiki.platform:xwiki-platform-oldcore, org.xwiki.platform:xwiki-platform-tool-configuration-resources- Disclosed
- 10.02.2022
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-9jq9-c2cv-pcrj - CC BY 4.0
Vulnerability history: org.xwiki.platform:xwiki-platform-tool-configuration-resources
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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