{"id":"CVE-2026-104456","title":"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","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 cont…","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L","cwe":["CWE-89"],"vendor":"YesWiki","product":"yeswiki","affected":["yeswiki < 4.6.7"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T15:17:07.693","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104456","references":[{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6rw5-62xf-q5xp","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-second-order-sql-injection-via-acl-username","label":"disclosure@vulncheck.com"},{"url":"https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6rw5-62xf-q5xp","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-02T14:04:44.947827Z"},"ingestedAt":"2026-10-02T12:17:44.341Z","epss":0.00297,"epssPercentile":0.22248,"slug":"CVE-2026-104456","body":"## Overview\n\nYesWiki 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":41.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":214962,"id":"CVE-2026-104456","ts":1790954552725,"field":"exploit_available","old":"false","new":"true"}]}