{"id":"CVE-2026-84253","title":"The click5 CRM add-on to Gravity Forms WordPress plugin through 1.0.3 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-…","summary":"The click5 CRM add-on to Gravity Forms WordPress plugin through 1.0.3 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-862"],"published":"2026-10-11","updated":"2026-10-11","sourceUpdated":"2026-10-11T12:17:22.900","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84253","references":[{"url":"https://wpscan.com/vulnerability/7df795df-1b4c-4b82-84ec-4a14d82592e5/","label":"contact@wpscan.com"}],"tags":["nvd"],"ingestedAt":"2026-10-11T08:44:24.716Z","epss":0.00106,"epssPercentile":0.01036,"slug":"CVE-2026-84253","body":"## Overview\n\nThe click5 CRM add-on to Gravity Forms WordPress plugin through 1.0.3 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-on to Gravity Forms WordPress plugin through 1.0.3. As a result, unauthenticated attackers could change arbitrary blog options, allowing them to create a new administrator account and take over the site.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":219239,"id":"CVE-2026-84253","ts":1791723027898,"field":"cvss","old":null,"new":"9.8"},{"seq":219238,"id":"CVE-2026-84253","ts":1791723027898,"field":"severity","old":"none","new":"critical"}]}