CVE-2023-34467 XWiki Platform may retrieve email addresses of all users

High 7.5 Published Updated

Attackers can retrieve all user email addresses by exploiting unobfuscated data in API responses, bypassing intended privacy protections.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2023-34467?

CVE-2023-34467 is a high-severity vulnerability in Xwiki Xwiki, published on 23 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

XWiki Platform is a generic wiki platform. Starting in version 3.5-milestone-1 and prior to versions 14.4.8, 14.10.4, and 15.0-rc-1, the mail obfuscation configuration was not fully taken into account. While the mail displayed to the end user was obfuscated, the rest response was also containing the mail unobfuscated and users were able to filter and sort on the unobfuscated, allowing them to infer the mail content. The consequence was the possibility to retrieve the email addresses of all users even when obfuscated. This has been patched in XWiki 14.4.8, 14.10.4, and 15.0-rc-1.

Weakness: CWE-668, CWE-402

Which versions are affected by CVE-2023-34467?

4 open source packages ship an affected version, including org.xwiki.platform:xwiki-platform-livetable-ui. It affects 1 product.

PackageAffectedFixed in
org.xwiki.platform:xwiki-platform-livetable-ui MavenFrom 14.514.10.4
org.xwiki.platform:xwiki-platform-livetable-ui MavenFrom 14.514.10.4
org.xwiki.platform:xwiki-platform-livetable-ui MavenFrom 3.5-milestone-114.4.8
org.xwiki.platform:xwiki-platform-livetable-ui MavenFrom 3.5-milestone-114.4.8

Products include Xwiki Xwiki.

How do I fix CVE-2023-34467?

Upgrade org.xwiki.platform:xwiki-platform-livetable-ui to a fixed version for your release line: 14.10.4 or 14.4.8.

Is CVE-2023-34467 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34467 exists.

All Xwiki Xwiki vulnerabilities

Sources

Also known as GHSA-7vr7-cghh-ch63.

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