{"id":"CVE-2026-110896","kind":"vulnerability","aliases":["CVE-2026-110896"],"related":[],"title":"WordPress Passster plugin: missing authorization lets visitors bypass content protection","description":"Missing Authorization vulnerability in WP Chill Passster content-protector allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Passster: from n/a through 4.3.18.","summary":"The Passster WordPress plugin, which password-protects content, has a missing authorization check that allows access control to be exploited when it is incorrectly configured. An attacker could read content that the site owner meant to keep behind a password.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","passster","self-hosted","wordpress"],"not_affected_if":["patched-version","plugin-not-installed"],"how_to_check":"- Check the installed Passster version in the WordPress admin plugin list or in `wp-content/plugins/passster/` header\n- Confirm whether protected content is still reachable without a password while logged out","fix":"- Update Passster to a version newer than `4.3.18`\n- unknown: the sources do not name the first fixed version","status":"open","published_at":"2026-10-16T13:16:55+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","triaged_at":"2026-10-25T04:27:20+00:00","updated_at":"2026-10-25T04:27:20+00:00","category":"package","confidence":0.5,"triage":{"at":"2026-10-25T04:27:20Z","model":"claude-haiku-5-5","output":{"fix":"- Update Passster to a version newer than `4.3.18`\n- unknown: the sources do not name the first fixed version","reach":"internet","title":"WordPress Passster plugin: missing authorization lets visitors bypass content protection","impact":"medium","summary":"The Passster WordPress plugin, which password-protects content, has a missing authorization check that allows access control to be exploited when it is incorrectly configured. An attacker could read content that the site owner meant to keep behind a password.","category":"package","nicknames":[],"who_cares":["wordpress","passster","self-hosted"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Protected content readable by anyone without the password","analyst_note":"Check NVD and the WP Chill changelog for the fixed version and exact access-control flaw; sources give only the affected range.","how_to_check":"- Check the installed Passster version in the WordPress admin plugin list or in `wp-content/plugins/passster/` header\n- Confirm whether protected content is still reachable without a password while logged out","needs_analyst":true,"not_affected_if":["plugin-not-installed","patched-version"],"who_is_affected":"Sites running the Passster content-protector plugin at version `4.3.18` or earlier, where pages or posts rely on it for access control. Sites without Passster, or on a newer patched release, are not affected.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000581,"input_tokens":3294,"output_tokens":503,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-110896':13A,16A '-2026':12A,15A '4.3.18':88C 'access':39B,78C 'affect':83C 'allow':38B,74C 'attack':50B 'author':5A,35B,65C 'behind':61B 'bypass':8A 'check':36B 'chill':69C 'configur':48B,77C 'content':9A,31B,53B,72C 'content-protector':71C 'control':40B,79C 'could':51B 'cve':11A,14A 'exploit':43B,75C 'host':21B 'incorrect':47B,76C 'issu':82C 'keep':60B 'let':6A 'levels.this':81C 'meant':58B 'miss':4A,34B,64C 'n/a':86C 'owner':57B 'packag':17B 'passster':2A,18B,24B,70C,84C 'password':29B,63B 'password-protect':28B 'plugin':3A,26B 'protect':10A,30B 'protector':73C 'read':52B 'secur':80C 'self':20B 'self-host':19B 'site':56B 'visitor':7A 'vulner':66C 'wordpress':1A,22B,25B 'wp':68C","nicknames":[],"mitigations":[],"who_affected":"Sites running the Passster content-protector plugin at version `4.3.18` or earlier, where pages or posts rely on it for access control. Sites without Passster, or on a newer patched release, are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T13:16:55+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cvss_by":"audit@patchstack.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-110896","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110896","severity":null,"published_at":"2026-10-16T13:16:55+00:00","modified_at":"2026-10-16T15:19:36+00:00","first_seen_at":"2026-10-23T21:57:13+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"}