{"id":"CVE-2026-29204","state":"PUBLISHED","title":"Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading","description":"Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account.","publishedAt":"2026-05-12T17:46:55.152Z","updatedAt":"2026-05-12T21:57:08.277Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"hackerone"},"assigner":"hackerone","products":["WebPros WHMCS"],"affected":[{"vendor":"WebPros","product":"WHMCS","defaultStatus":"unaffected","versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"18.12.2","versionType":"semver"},{"version":"18.13.0","status":"affected","lessThan":"18.13.3","versionType":"semver"},{"version":"9.0.0","status":"affected","lessThan":"9.0.4","versionType":"semver"}]}],"references":["https://help.whmcs.com/m/125386/l/2073908-cve-2026-29204"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/29xxx/CVE-2026-29204.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-29204","state":"PUBLISHED","datePublished":"2026-05-12T17:46:55.152Z","dateUpdated":"2026-05-12T21:57:08.277Z","assignerShortName":"hackerone","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateReserved":"2026-03-04T15:00:09.267Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account."}],"affected":[{"vendor":"WebPros","product":"WHMCS","defaultStatus":"unaffected","versions":[{"version":"7.4.0","status":"affected","lessThanOrEqual":"18.12.2","versionType":"semver"},{"version":"18.13.0","status":"affected","lessThan":"18.13.3","versionType":"semver"},{"version":"9.0.0","status":"affected","lessThan":"9.0.4","versionType":"semver"}]}],"references":[{"url":"https://help.whmcs.com/m/125386/l/2073908-cve-2026-29204"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":9.1,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","type":"CWE","lang":"en","description":"CWE-639 Insecure Direct Object Reference (IDOR)"}]}],"providerMetadata":{"shortName":"hackerone","orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","dateUpdated":"2026-05-12T21:57:08.277Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-12T21:10:39.672400Z","id":"CVE-2026-29204","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-12T21:13:06.404Z"}}]}}}