All vulnerabilities
CVE-2026-104455GHSA-89vc-h4r4-h25q

YesWiki before 4.6.7 Read-ACL Bypass via recentchangesrssplus RSS Action

YesWiki yeswiki
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 2 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.37%Chance of exploitation activity in the next 30 days, higher than 29% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.6.7Fixed versionCVE List
Published2 Oct 2026Updated 7 Oct 2026CVE List

What fixes it

  • 4.6.7yeswikiCVE List
  • 4.6.7yeswiki/yeswiki, composerGitHubcomposer require "yeswiki/yeswiki:^4.6.7"

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

YesWiki before 4.6.7 contains an access control bypass vulnerability that allows unauthenticated attackers to read restricted page content via the recentchangesrssplus RSS action. Attackers can request the xml method of a page hosting the action to retrieve 500-character body excerpts of every latest page, including read-restricted drafts and notes.

Text from CVE List

Affected versions 3

  • yeswikiaffected: all versions before 4.6.7CVE List
  • yeswikiunaffected: 4.6.7CVE List
  • yeswiki/yeswiki, composer<= 4.6.6GitHub

References 2