{"id":"CVE-2026-111409","kind":"vulnerability","aliases":["CVE-2026-111409"],"related":[],"title":"YITH PayPal Express Checkout for WooCommerce: missing authorization check","description":"Missing Authorization vulnerability in YITH YITH PayPal Express Checkout for WooCommerce yith-paypal-express-checkout-for-woocommerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects YITH PayPal Express Checkout for WooCommerce: from n/a through 1.61.0.","summary":"The YITH PayPal Express Checkout plugin for WooCommerce lacks an authorization check on some functionality, so a user may reach actions they should not. The sources do not say which action or what data an attacker can read or change.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","self-hosted","woocommerce","wordpress"],"not_affected_if":[],"how_to_check":"- Check the installed plugin version in WordPress admin under Plugins, or `wp plugin get yith-paypal-express-checkout-for-woocommerce --field=version`\n- unknown for anything more specific","fix":"- Update YITH PayPal Express Checkout for WooCommerce to a version later than `1.61.0`\n- unknown for a patched version number","status":"open","published_at":"2026-10-16T13:16:56+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","triaged_at":"2026-10-25T04:27:19+00:00","updated_at":"2026-10-25T04:27:19+00:00","category":"package","confidence":0.4,"triage":{"at":"2026-10-25T04:27:19Z","model":"claude-haiku-5-5","output":{"fix":"- Update YITH PayPal Express Checkout for WooCommerce to a version later than `1.61.0`\n- unknown for a patched version number","reach":"internet","title":"YITH PayPal Express Checkout for WooCommerce: missing authorization check","impact":"medium","summary":"The YITH PayPal Express Checkout plugin for WooCommerce lacks an authorization check on some functionality, so a user may reach actions they should not. The sources do not say which action or what data an attacker can read or change.","category":"package","nicknames":[],"who_cares":["wordpress","woocommerce","self-hosted"],"confidence":0.4,"needs_auth":"unknown","worst_case":"unknown access to checkout actions the plugin should restrict","analyst_note":"Check the NVD entry and the plugin changelog for the vulnerable function, the required privilege level, and the fixed version.","how_to_check":"- Check the installed plugin version in WordPress admin under Plugins, or `wp plugin get yith-paypal-express-checkout-for-woocommerce --field=version`\n- unknown for anything more specific","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Sites running YITH PayPal Express Checkout for WooCommerce at version `1.61.0` or earlier are in scope. The sources do not say which user roles or configurations make a site exposed, so unknown whether sites with the plugin disabled or limited access are safe.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000602,"input_tokens":3337,"output_tokens":536,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111409':12A,15A '-2026':11A,14A '1.61.0':99C 'access':84C 'action':42B,52B 'affect':89C 'allow':80C 'attack':57B 'author':8A,32B,63C 'chang':61B 'check':9A,33B 'checkout':4A,26B,70C,77C,93C 'configur':83C 'control':85C 'cve':10A,13A 'data':55B 'exploit':81C 'express':3A,25B,69C,76C,92C 'function':36B 'host':19B 'incorrect':82C 'issu':88C 'lack':30B 'levels.this':87C 'may':40B 'miss':7A,62C 'n/a':97C 'packag':16B 'paypal':2A,24B,68C,75C,91C 'plugin':27B 'reach':41B 'read':59B 'say':50B 'secur':86C 'self':18B 'self-host':17B 'sourc':47B 'user':39B 'vulner':64C 'woocommerc':6A,20B,29B,72C,79C,95C 'wordpress':21B 'yith':1A,23B,66C,67C,74C,90C 'yith-paypal-express-checkout-for-woocommerc':73C","nicknames":[],"mitigations":[],"who_affected":"Sites running YITH PayPal Express Checkout for WooCommerce at version `1.61.0` or earlier are in scope. The sources do not say which user roles or configurations make a site exposed, so unknown whether sites with the plugin disabled or limited access are safe.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T13:16:56+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-2026-111409","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111409","severity":null,"published_at":"2026-10-16T13:16:56+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"}