🛡️ CVE-2025-32783 — xwiki
Description
Unregistered users can see "public" messages from a closed wiki via notifications from a different wiki
Impact
This vulnerability impacts users of a subwiki of XWiki where Message Stream is enabled and use, if they configured their wiki to be closed by selecting "Prevent unregistered users to view pages" in the Administrations Rights.
The vulnerability is that any message sent in a subwiki to "everyone" is actually sent to the farm: any visitor of the main wiki will be able to see that message through the Dashboard, even if the subwiki is configured to be private.
Patches
This problem has not been patched and is not going to be patched in the future: Message Stream has been deprecated in XWiki 16.8.0RC1 and is not maintained anymore.
Workarounds
Message Stream is disabled by default, it's advised to keep it disabled from Administration > Social > Message Stream.
References
- https://jira.xwiki.org/browse/XWIKI-17154
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity none, availability none.
Weakness class
CVE-2025-32783 is classified as CWE-668: Exposure of Resource to Wrong Sphere. A resource is made reachable from a context that should not have access to it.
Affected software
CVE-2025-32783 is recorded against 2 packages.
- org.xwiki.platform:xwiki-platform-messagestream (from 5.0)
- xwiki (from 5.0 up to 16.7.1)
Timeline and source
Published on 16 April 2025 and last revised on 17 April 2025. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
github.com (Web)
nvd.nist.gov (Advisory)
github.com (Package)
jira.xwiki.org (Web)
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| org.xwiki.platform:xwiki-platform-messagestream | 5.0 | — |
| xwiki | 5.0 | 16.7.1 |
References
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