CVE-2026-116821
YesWiki before 4.7.0 Read-ACL Bypass via SQL LIKE Wildcards in Usernames
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
YesWiki before 4.7.0 contains a read-ACL bypass in AclService::updateRequestWithACL, which interpolates usernames into SQL LIKE patterns without escaping the _ and % wildcards. Self-registered attackers can use usernames such as ___ or %%% that over-match ACL tokens, reading pages and Bazar entries restricted to other users or groups via the public Bazar listing API.
| CWE | CWE-89 |
| Vendor | yeswiki |
| Product | yeswiki |
| Published | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
YesWiki / yeswiki
0 < 4.7.0
References
github.com: https://github.com/YesWiki/yeswiki/security/advisories/GHSA-q5j6-79p7-mp94 github.com: https://github.com/YesWiki/yeswiki/commit/f3b0dd093a7ace47dc29a515faeb02635baceae2 vulncheck.com: https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-read-acl-bypass-via-sql-like-wildcards-in-usernames
Credits
🔍 manus-pi