{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116821","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-26T22:14:57.232Z","datePublished":"2026-10-26T23:05:47.763Z","dateUpdated":"2026-10-26T23:05:47.763Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-26T23:05:47.763Z"},"datePublic":"2026-10-12T00:00:00.000Z","title":"YesWiki before 4.7.0 Read-ACL Bypass via SQL LIKE Wildcards in Usernames","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')","cweId":"CWE-89","type":"CWE"}]}],"affected":[{"vendor":"YesWiki","product":"yeswiki","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"4.7.0"},{"version":"4.7.0","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:*","versionEndExcluding":"4.7.0"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-q5j6-79p7-mp94","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-q5j6-79p7-mp94)"},{"url":"https://github.com/YesWiki/yeswiki/commit/f3b0dd093a7ace47dc29a515faeb02635baceae2","tags":["patch"],"name":"Patch Commit"},{"name":"VulnCheck Advisory: YesWiki before 4.7.0 Read-ACL Bypass via SQL LIKE Wildcards in Usernames","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-read-acl-bypass-via-sql-like-wildcards-in-usernames"}],"credits":[{"lang":"en","value":"manus-pi","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}