{"id":"CVE-2026-54543","title":"Froxlor is open source server administration software","summary":"Froxlor is open source server administration software. Prior to 2.3.8, the DomainZones.add API command in lib/Froxlor/Api/Commands/DomainZones.php accepts user-controlled record and type values without rejecting line delimiters, tab char…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","cwe":["CWE-74","CWE-20"],"vendor":"froxlor","product":"froxlor/froxlor","affected":["froxlor/froxlor <= 2.3.7"],"patched":["froxlor/froxlor 2.3.8"],"published":"2026-08-18","updated":"2026-09-08","sourceUpdated":"2026-09-08T21:02:26.047","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54543","references":[{"url":"https://github.com/froxlor/froxlor/commit/a4f09f09fa71337b6cdff364d0a641d631a0130a","label":"security-advisories@github.com"},{"url":"https://github.com/froxlor/froxlor/releases/tag/2.3.8","label":"security-advisories@github.com"},{"url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-5rw4-4665-cvwf","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-5rw4-4665-cvwf"}],"tags":["nvd","ghsa","composer"],"epss":0.00428,"epssPercentile":0.36562,"aliases":["GHSA-5rw4-4665-cvwf"],"ecosystem":"composer","ingestedAt":"2026-08-18T21:22:59.939Z","slug":"CVE-2026-54543","body":"## Overview\n\nFroxlor is open source server administration software. Prior to 2.3.8, the DomainZones.add API command in lib/Froxlor/Api/Commands/DomainZones.php accepts user-controlled record and type values without rejecting line delimiters, tab characters, semicolons, or unsupported DNS record types before lib/Froxlor/Dns/DnsEntry.php serializes the values into a BIND zone file. An authenticated customer with DNS-zone permissions can place a crafted value in the record field, or use the related type-field variant, to create additional resource-record lines that bypass Froxlor's field-level validation. BIND accepts the injected records, allowing modification of DNS data and possible DNS availability impact within a zone the caller is authorized to manage. This issue is fixed in version 2.3.8.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-54543)\n\nAffected packages:\n\n- `froxlor/froxlor <= 2.3.7`\n\nPatched in:\n\n- `froxlor/froxlor 2.3.8`\n\nSource: https://github.com/advisories/GHSA-5rw4-4665-cvwf","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}