{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52771", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-08T17:13:43.064Z", "datePublished": "2026-09-04T23:41:34.061Z", "dateUpdated": "2026-09-04T23:41:34.061Z"}, "containers": {"cna": {"title": "YesWiki: Second-Order SQL Injection in Page Delete API via Unescaped Page Tag (`ApiController::deletePage`)", "problemTypes": [{"descriptions": [{"cweId": "CWE-89", "lang": "en", "description": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-8f2v-2qhj-gfwg", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-8f2v-2qhj-gfwg"}, {"name": "https://github.com/YesWiki/yeswiki/commit/23d3cc124613b9428ab963b31807c08879a9c631", "tags": ["x_refsource_MISC"], "url": "https://github.com/YesWiki/yeswiki/commit/23d3cc124613b9428ab963b31807c08879a9c631"}, {"name": "https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6", "tags": ["x_refsource_MISC"], "url": "https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6"}], "affected": [{"vendor": "YesWiki", "product": "yeswiki", "versions": [{"version": ">= 4.2.0, < 4.6.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-04T23:41:34.061Z"}, "descriptions": [{"lang": "en", "value": "YesWiki is a wiki system written in PHP. From version 4.2.0 to before version 4.6.6, ApiController::deletePage() interpolates a page tag retrieved from the database into a DELETE FROM \u2026_links WHERE to_tag = '$tag' query without escaping. The page tag is attacker-controlled \u2014 the POST /api/pages/{tag} API accepts arbitrary URL-encoded values, including single quotes, and stores them. A low-privilege authenticated user can therefore create a page whose tag is a SQL fragment, make the page non-orphaned via the standard {{include page=\"\u2026\"}} link mechanism, and then invoke the delete endpoint to execute arbitrary SQL inside the wiki database - including time-based blind data exfiltration from any table. This issue has been patched in version 4.6.6."}], "source": {"advisory": "GHSA-8f2v-2qhj-gfwg", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "yeswiki", "vendor": "YesWiki", "versions": [{"status": "affected", "version": ">= 4.2.0, < 4.6.6"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "YesWiki is a wiki system written in PHP. From version 4.2.0 to before version 4.6.6, ApiController::deletePage() interpolates a page tag retrieved from the database into a DELETE FROM \u2026_links WHERE to_tag = '$tag' query without escaping. The page tag is attacker-controlled \u2014 the POST /api/pages/{tag} API accepts arbitrary URL-encoded values, including single quotes, and stores them. A low-privilege authenticated user can therefore create a page whose tag is a SQL fragment, make the page non-orphaned via the standard {{include page=\"\u2026\"}} link mechanism, and then invoke the delete endpoint to execute arbitrary SQL inside the wiki database - including time-based blind data exfiltration from any table. This issue has been patched in version 4.6.6."}], "id": "CVE-2026-52771", "lastModified": "2026-09-05T00:17:19.963", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-05T00:17:19.963", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/YesWiki/yeswiki/commit/23d3cc124613b9428ab963b31807c08879a9c631"}, {"source": "security-advisories@github.com", "url": "https://github.com/YesWiki/yeswiki/releases/tag/v4.6.6"}, {"source": "security-advisories@github.com", "url": "https://github.com/YesWiki/yeswiki/security/advisories/GHSA-8f2v-2qhj-gfwg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-89"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}