{"id":"CVE-2026-110880","kind":"vulnerability","aliases":["CVE-2026-110880"],"related":[],"title":"Kit ConvertKit WordPress plugin: missing authorization check through 3.4.6","description":"Missing Authorization vulnerability in Kit Kit (formerly ConvertKit) convertkit allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Kit (formerly ConvertKit): from n/a through 3.4.6.","summary":"The Kit (formerly ConvertKit) convertkit plugin has a missing authorization check, so access control is not enforced on some actions. The sources do not say exactly which data or actions an attacker could reach.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["convertkit","kit","package","wordpress"],"not_affected_if":["plugin-version-above-3.4.6"],"how_to_check":"- Check the installed Kit (ConvertKit) plugin version in the WordPress admin plugins list or with `wp plugin get convertkit --field=version`\n- unknown for any other check, the sources do not say","fix":"- Update the Kit (ConvertKit) plugin to a version later than `3.4.6`\n- unknown for any other action, the sources do not say","status":"open","published_at":"2026-10-18T11:16:37+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","triaged_at":"2026-10-25T03:57:33+00:00","updated_at":"2026-10-25T03:57:33+00:00","category":"package","confidence":0.5,"triage":{"at":"2026-10-25T03:57:33Z","model":"claude-haiku-5-5","output":{"fix":"- Update the Kit (ConvertKit) plugin to a version later than `3.4.6`\n- unknown for any other action, the sources do not say","reach":"unknown","title":"Kit ConvertKit WordPress plugin: missing authorization check through 3.4.6","impact":"medium","summary":"The Kit (formerly ConvertKit) convertkit plugin has a missing authorization check, so access control is not enforced on some actions. The sources do not say exactly which data or actions an attacker could reach.","category":"package","nicknames":[],"who_cares":["wordpress","kit","convertkit"],"confidence":0.5,"needs_auth":"unknown","worst_case":"unknown access to plugin actions due to missing authorization checks","analyst_note":"Check the NVD entry and the vendor or WPScan advisory for the affected functions, required privileges and the fixed version.","how_to_check":"- Check the installed Kit (ConvertKit) plugin version in the WordPress admin plugins list or with `wp plugin get convertkit --field=version`\n- unknown for any other check, the sources do not say","needs_analyst":true,"not_affected_if":["plugin-version-above-3.4.6"],"who_is_affected":"Sites running the Kit (formerly ConvertKit) convertkit plugin at version `3.4.6` or earlier are affected. The sources do not say which configurations or roles make a site more exposed.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000593,"input_tokens":3319,"output_tokens":523,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-110880':12A,15A '-2026':11A,14A '3.4.6':9A,79C 'access':32B,67C 'action':39B,49B 'affect':72C 'allow':63C 'attack':51B 'author':6A,29B,55C 'check':7A,30B 'configur':66C 'control':33B,68C 'convertkit':2A,16B,23B,24B,61C,62C,75C 'could':52B 'cve':10A,13A 'data':47B 'enforc':36B 'exact':45B 'exploit':64C 'former':22B,60C,74C 'incorrect':65C 'issu':71C 'kit':1A,17B,21B,58C,59C,73C 'levels.this':70C 'miss':5A,28B,54C 'n/a':77C 'packag':18B 'plugin':4A,25B 'reach':53B 'say':44B 'secur':69C 'sourc':41B 'vulner':56C 'wordpress':3A,19B","nicknames":[],"mitigations":[],"who_affected":"Sites running the Kit (formerly ConvertKit) convertkit plugin at version `3.4.6` or earlier are affected. The sources do not say which configurations or roles make a site more exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-18T11:16:37+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cvss_by":"audit@patchstack.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-110880","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110880","severity":null,"published_at":"2026-10-18T11:16:37+00:00","modified_at":"2026-10-19T19:17:22+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","fetched_at":"2026-10-23T22:28:55+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}