{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-121434","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-03T12:30:48.367Z","datePublished":"2026-11-03T14:28:27.125Z","dateUpdated":"2026-11-03T14:28:27.125Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-03T14:28:27.125Z"},"datePublic":"2026-10-20T00:00:00.000Z","title":"Froxlor 2.3.0 before 2.3.15 Authorization Bypass via Certificates.update API","descriptions":[{"lang":"en","value":"Froxlor 2.3.0 before 2.3.15 contains a missing authorization check in the Certificates.add and Certificates.update API commands, which do not verify whether a domain's certificate is Let's Encrypt-managed. Customers with API access can overwrite the managed certificate and private key with an attacker-chosen pair, which a REBUILD_VHOST task deploys to the webserver, breaking HTTPS and desynchronizing ACME automation."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Missing Authorization","cweId":"CWE-862","type":"CWE"}]}],"affected":[{"vendor":"froxlor","product":"froxlor","defaultStatus":"unaffected","versions":[{"version":"2.3.0","status":"affected","versionType":"semver","lessThan":"2.3.15"},{"version":"2.3.15","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*","versionStartIncluding":"2.3.0","versionEndExcluding":"2.3.15"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-ch7m-649m-x7xg","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-ch7m-649m-x7xg)"},{"name":"VulnCheck Advisory: Froxlor 2.3.0 before 2.3.15 Authorization Bypass via Certificates.update API","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/froxlor-2.3.0-before-2.3.15-authorization-bypass-via-certificates-update-api"}],"credits":[{"lang":"en","value":"Hama1cco","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}}}}