CVE-2026-104456

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.

CVSS 4.0

7.2CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

EPSS

0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-25)

CWE

CWE-89

Published

2026-10-02

Modified

2026-10-02

Record from

the NVD, synced 2026-10-19

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

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