CVE-2026-104456

Summary

YesWiki before 4.6.7 contains a second-order SQL injection vulnerability in AclService::updateRequestWithACL, where a stored username is concatenated unescaped into a read-ACL LIKE clause. Attackers can self-register an account name containing a double-quote payload, then load non-admin ACL-filtered listings to read database contents and bypass read ACLs.

Affected Software

Weaknesses

• CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6rw5-62xf-q5xp

References

• https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6rw5-62xf-q5xp
• https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-second-order-sql-injection-via-acl-username

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