{"id":"CVE-2026-119166","kind":"vulnerability","aliases":["CVE-2026-119166"],"related":[],"title":"Welcart e-Commerce plugin lets visitors take over any shop member account","description":"The Welcart e-Commerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.12.5 via the 'member[ID]' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to overwrite any existing Welcart shop-member account's email address and password by supplying that member's numeric ID, then authenticate as that member to achieve full account takeover. The only authentication barrier is a wp_verify_nonce() check against a nonce printed to every unauthenticated visitor on the auto-published New Enrollment Form, meaning no existing account, no WordPress login, and no non-default configuration is required to exploit this vulnerability.","summary":"The Welcart e-Commerce WordPress plugin up to and including 2.12.5 accepts a user-supplied member ID that lets an unauthenticated visitor overwrite another member's email address and password. An attacker can then log in as that member and take over the account.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["e-commerce","package","self-hosted","welcart","wordpress"],"not_affected_if":["newer-version","plugin-not-installed"],"how_to_check":"- Check the installed Welcart e-Commerce plugin version in the WordPress admin under Plugins; affected versions are `2.12.5` and below.\n- Look for the New Enrollment Form page on the site, which the description says is published automatically.","fix":"- Welcart e-Commerce: move to a version later than `2.12.5` (the sources do not name the fixed release).","status":"open","published_at":"2026-10-31T07:16:36+00:00","first_seen_at":"2026-10-31T07:34:07+00:00","triaged_at":"2026-10-31T07:34:50+00:00","updated_at":"2026-10-31T07:34:50+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-31T07:34:50Z","model":"claude-haiku-5-5","output":{"fix":"- Welcart e-Commerce: move to a version later than `2.12.5` (the sources do not name the fixed release).","reach":"internet","title":"Welcart e-Commerce plugin lets visitors take over any shop member account","impact":"high","summary":"The Welcart e-Commerce WordPress plugin up to and including 2.12.5 accepts a user-supplied member ID that lets an unauthenticated visitor overwrite another member's email address and password. An attacker can then log in as that member and take over the account.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","welcart","e-commerce","self-hosted"],"confidence":0.8,"fix_status":"unknown","needs_auth":"no","worst_case":"attacker takes over any shop member account remotely","analyst_note":"Confirm the fixed Welcart version from the plugin's changelog or the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-119166.","how_to_check":"- Check the installed Welcart e-Commerce plugin version in the WordPress admin under Plugins; affected versions are `2.12.5` and below.\n- Look for the New Enrollment Form page on the site, which the description says is published automatically.","plain_action":"","needs_analyst":true,"not_affected_if":["plugin-not-installed","newer-version"],"who_is_affected":"Sites running the Welcart e-Commerce plugin up to and including 2.12.5 with the New Enrollment Form published are exposed, since the flaw is reachable by any visitor without an account. Sites without this plugin, or on a newer version, are not affected by this description.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000728,"input_tokens":4275,"output_tokens":601,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-119166':16A,19A '-2026':15A,18A '2.12.5':40B,97C 'accept':41B 'account':13A,74B,127C,148C,179C 'achiev':146C 'address':58B,130C 'anoth':54B 'attack':62B,118C 'authent':141C,152C 'auto':171C 'auto-publish':170C 'barrier':153C 'check':159C 'commerc':4A,22B,33B,79C 'configur':188C 'control':110C 'cve':14A,17A 'default':187C 'direct':87C 'due':103C 'e':3A,21B,32B,78C 'e-commerc':2A,20B,31B,77C 'email':57B,129C 'enrol':174C 'everi':165C 'exist':122C,178C 'exploit':192C 'form':175C 'full':147C 'host':26B 'id':47B,101C,139C 'includ':39B,96C 'insecur':86C 'key':111C 'let':6A,49B 'log':65B 'login':182C 'make':113C 'mean':176C 'member':12A,46B,55B,69B,100C,126C,136C,144C 'miss':105C 'new':173C 'non':186C 'non-default':185C 'nonc':158C,162C 'numer':138C 'object':88C 'overwrit':53B,120C 'packag':23B 'paramet':102C 'password':60B,132C 'plugin':5A,35B,80C 'possibl':115C 'print':163C 'publish':172C 'refer':89C 'requir':190C 'self':25B 'self-host':24B 'shop':11A,125C 'shop-memb':124C 'suppli':45B,134C 'take':8A,71B 'takeov':149C 'unauthent':51B,117C,166C 'user':44B,109C 'user-suppli':43B 'valid':106C 'verifi':157C 'version':92C 'via':98C 'visitor':7A,52B,167C 'vulner':84C,194C 'welcart':1A,27B,30B,76C,123C 'wordpress':28B,34B,82C,181C 'wp':156C","nicknames":[],"mitigations":[],"who_affected":"Sites running the Welcart e-Commerce plugin up to and including 2.12.5 with the New Enrollment Form published are exposed, since the flaw is reachable by any visitor without an account. Sites without this plugin, or on a newer version, are not affected by this description.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"first_public_at":"2026-10-31T07:16:36+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cvss_by":"security@wordfence.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-119166","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119166","severity":null,"published_at":"2026-10-31T07:16:36+00:00","modified_at":"2026-10-31T07:16:36+00:00","first_seen_at":"2026-10-31T07:34:07+00:00","fetched_at":"2026-10-31T07:34:07+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"}