CVE-2023-29520 Page render failure due to broken translations in xwiki-platform
Attackers can break page rendering by creating corrupted translation objects, causing denial of service for wiki users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-29520?
CVE-2023-29520 is a medium-severity denial of service vulnerability in Xwiki Xwiki, published on 18 Apr 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It's possible to break many translations coming from wiki pages by creating a corrupted document containing a translation object. This will lead to a broken page. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. Users are advised to upgrade. There are no workarounds other than fixing any way to create a document that fail to load.
Which versions are affected by CVE-2023-29520?
6 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-localization-source-wiki. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.xwiki.platform:xwiki-platform-localization-source-wiki Maven | From 14.0-rc-1 | 14.4.8 |
org.xwiki.platform:xwiki-platform-localization-source-wiki Maven | From 14.0-rc-1 | 14.4.8 |
org.xwiki.platform:xwiki-platform-localization-source-wiki Maven | From 14.5 | 14.10.1 |
org.xwiki.platform:xwiki-platform-localization-source-wiki Maven | From 14.5 | 14.10.1 |
org.xwiki.platform:xwiki-platform-localization-source-wiki Maven | From 4.3-milestone-2 | 13.10.11 |
org.xwiki.platform:xwiki-platform-localization-source-wiki Maven | From 4.3-milestone-2 | 13.10.11 |
Products include Xwiki Xwiki.
How do I fix CVE-2023-29520?
Upgrade org.xwiki.platform:xwiki-platform-localization-source-wiki to a fixed version for your release line: 14.4.8, 14.10.1 or 13.10.11.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-29520 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-29520 exists.
Other vulnerabilities in Xwiki Xwiki
- CVE-2025-24893 XWiki Platform Eval Injection
- CVE-2025-53836 XWiki Rendering is vulnerable to RCE attacks when processing nested macros
- CVE-2024-55662 XWiki allows remote code execution through the extension sheet
- CVE-2024-55877 XWiki allows remote code execution from account through macro descriptions and XWiki.XWikiSyntaxMacrosList
- CVE-2024-37901 XWiki Platform vulnerable to remote code execution from account via SearchSuggestConfigSheet
Sources
Also known as GHSA-9jq5-xwqw-q8j3.