{"id":"CVE-2026-90907","title":"Joomla! Core - [20260902] - Core - Unauthorized user account creation via profile.save controller in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - The profile.save controller did not check the login state of a user, allowing the creation of guest-le…","summary":"Joomla! Core - [20260902] - Core - Unauthorized user account creation via profile.save controller in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - The profile.save controller did not check the login state of a user, allowing the creation of guest-le…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-639"],"vendor":"joomla","product":"joomla!","affected":["joomla! >= 1.5.0, < 5.4.8","joomla! >= 6.0.0, < 6.1.3"],"patched":["joomla! 6.1.3"],"published":"2026-09-29","updated":"2026-10-06","sourceUpdated":"2026-10-06T16:48:24.527","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90907","references":[{"url":"https://developer.joomla.org/security-centre/1082-20260902-core-unauthorized-user-account-creation-via-profile-save-controller.html","label":"security@joomla.org"},{"url":"https://www.joomla.org/","label":"security@joomla.org"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.00247,"epssPercentile":0.15892,"exploits":{"github":1,"githubRepos":["https://github.com/aorozco-sys/CVE-2026-90907"],"checkedAt":"2026-10-27T19:21:50.300Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-30T15:09:34.433103Z"},"scores":{"nvd":5.3,"cna":6.9},"ingestedAt":"2026-09-29T17:41:02.207Z","slug":"CVE-2026-90907","body":"## Overview\n\nJoomla! Core - [20260902] - Core - Unauthorized user account creation via profile.save controller in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - The profile.save controller did not check the login state of a user, allowing the creation of guest-level users on sites without active user registration.\n\n## Affected\n\n- `joomla! >= 1.5.0, < 5.4.8`\n- `joomla! >= 6.0.0, < 6.1.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `joomla! 6.1.3`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":216552,"id":"CVE-2026-90907","ts":1791306615294,"field":"cvss","old":"6.9","new":"5.3"},{"seq":215052,"id":"CVE-2026-90907","ts":1790977938371,"field":"exploit_available","old":"false","new":"true"}]}