Information disclosure in XWiki platform

1) Exposure of Resource to Wrong Sphere

EUVDB-ID: #VU107581

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-32783

CWE-ID: CWE-668 - Exposure of resource to wrong sphere

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to exposure of resource to wrong sphere within notifications from a different wiki. A remote attacker can see "public" messages from a closed wiki.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

XWiki platform: 1.3 rc-1 - 17.2.1

CPE2.3

• cpe:2.3:a:xwiki:xwiki-platform:1.3:rc-1:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:*:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.1:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.2:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.2.2:*:*:*:*:*:*:*

External links

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-42fh-pvvh-999x
https://jira.xwiki.org/browse/XWIKI-17154

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.