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
If you have any questions or comments about this advisory:
- Open an issue in Jira
- Email us at security ML
Affected software
Click a technology to see all vulnerabilities affecting it.
| 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-oldcore
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.
- Total entries
- 46
- First → latest
- 09.2020 07.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 12
- High 17
- Medium 15
- Low 2
Disclosures per year
- 2020: 2
- 2021: 1
- 2022: 12
- 2023: 15
- 2024: 7
- 2025: 6
- 2026: 3
-
Cross-site Scripting by SVG upload in xwiki-platform this entry
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