{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73849", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-13T17:44:28.644Z", "datePublished": "2026-08-14T17:37:20.232Z", "dateUpdated": "2026-08-14T17:37:20.232Z"}, "containers": {"cna": {"title": "emlog allows unauthenticated reinstallation via `install.php?action=reinstall`.", "problemTypes": [{"descriptions": [{"cweId": "CWE-306", "lang": "en", "description": "CWE-306: Missing Authentication for Critical Function", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/emlog/emlog/security/advisories/GHSA-v5qq-p8mp-3gxm", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/emlog/emlog/security/advisories/GHSA-v5qq-p8mp-3gxm"}], "affected": [{"vendor": "emlog", "product": "emlog", "versions": [{"version": "<= 2.6.26", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-14T17:37:20.232Z"}, "descriptions": [{"lang": "en", "value": "Emlog is an open source website building system. In 2.6.26 and earlier, install.php accepts action=reinstall without authentication and deliberately skips the already-installed check because the guard runs only when $act != 'reinstall'. A remote attacker can submit hostname, dbuser, dbpasswd, dbname, dbprefix, username, password, and email values to cause file_put_contents('config.php', $config) to overwrite the configuration with attacker-controlled database settings and create a new administrator account. No fixed version is available as of this review."}], "source": {"advisory": "GHSA-v5qq-p8mp-3gxm", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "emlog", "vendor": "emlog", "versions": [{"status": "affected", "version": "<= 2.6.26"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Emlog is an open source website building system. In 2.6.26 and earlier, install.php accepts action=reinstall without authentication and deliberately skips the already-installed check because the guard runs only when $act != 'reinstall'. A remote attacker can submit hostname, dbuser, dbpasswd, dbname, dbprefix, username, password, and email values to cause file_put_contents('config.php', $config) to overwrite the configuration with attacker-controlled database settings and create a new administrator account. No fixed version is available as of this review."}], "id": "CVE-2026-73849", "lastModified": "2026-08-14T18:19:09.987", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-14T18:19:09.987", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/emlog/emlog/security/advisories/GHSA-v5qq-p8mp-3gxm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.6.26]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "emlog", "source": "cna", "vendor": "emlog"}, "product": "emlog", "vendor": "emlog"}], "created": "2026-08-14T19:45:16.674669+00:00", "updated": "2026-08-14T20:15:13.662277+00:00", "vendors": ["emlog", "emlog$PRODUCT$emlog"]}