{"id":"CVE-2026-118757","kind":"vulnerability","aliases":["CVE-2026-118757"],"related":[],"title":"PiWeb WooCommerce payment plugin lets anyone alter other customers' orders","description":"PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 contains a missing authorization vulnerability in the update_fees AJAX handler that allows unauthenticated attackers to modify and read other customers' orders. Attackers can reuse a nonce from their own order-pay page and supply sequential order_id values to change payment methods, recalculate fees, and disclose order line items and totals.","summary":"PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 has a missing authorization check in its update_fees AJAX handler. An unauthenticated attacker can reuse a nonce from their own order page and iterate order_id values to change payment methods, recalculate fees, and read other customers' order line items and totals.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ecommerce","package","woocommerce","wordpress"],"not_affected_if":["plugin-not-installed","version-1.1.10.9-or-later"],"how_to_check":"- Check the installed plugin version in the WordPress admin plugin list or with `wp plugin get <plugin-slug> --field=version` (unknown exact slug from sources)\n- Confirm whether the plugin is active under WooCommerce on the site","fix":"- Update the PiWeb Disable payment method / Partial payment for WooCommerce plugin to `1.1.10.9` or later\n- If no update is available, deactivate the plugin until it is patched","status":"open","published_at":"2026-10-28T22:17:14+00:00","first_seen_at":"2026-10-28T22:35:34+00:00","triaged_at":"2026-10-28T22:36:54+00:00","updated_at":"2026-10-28T22:36:54+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-28T22:36:54Z","model":"claude-haiku-5-5","output":{"fix":"- Update the PiWeb Disable payment method / Partial payment for WooCommerce plugin to `1.1.10.9` or later\n- If no update is available, deactivate the plugin until it is patched","reach":"internet","title":"PiWeb WooCommerce payment plugin lets anyone alter other customers' orders","impact":"medium","summary":"PiWeb Disable payment method / Partial payment for WooCommerce before 1.1.10.9 has a missing authorization check in its update_fees AJAX handler. An unauthenticated attacker can reuse a nonce from their own order page and iterate order_id values to change payment methods, recalculate fees, and read other customers' order line items and totals.","category":"package","nicknames":[],"who_cares":["wordpress","woocommerce","ecommerce"],"confidence":0.7,"needs_auth":"no","worst_case":"Attackers read and alter other customers' orders and totals","analyst_note":"","how_to_check":"- Check the installed plugin version in the WordPress admin plugin list or with `wp plugin get <plugin-slug> --field=version` (unknown exact slug from sources)\n- Confirm whether the plugin is active under WooCommerce on the site","needs_analyst":false,"not_affected_if":["plugin-not-installed","version-1.1.10.9-or-later"],"who_is_affected":"Sites running the PiWeb Disable payment method / Partial payment for WooCommerce plugin before 1.1.10.9 with WooCommerce checkout, where customers pay for orders through the order-pay page. Stores without this plugin, or with it already on 1.1.10.9 or later, are not affected.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000637,"input_tokens":3361,"output_tokens":601,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-118757':13A,16A '-2026':12A,15A '1.1.10.9':30B,83C 'ajax':40B,93C 'allow':96C 'alter':7A 'anyon':6A 'attack':44B,98C,106C 'author':34B,87C 'chang':60B,125C 'check':35B 'contain':84C 'custom':9A,68B,104C 'cve':11A,14A 'disabl':22B,75C 'disclos':131C 'ecommerc':17B 'fee':39B,64B,92C,129C 'handler':41B,94C 'id':57B,122C 'item':71B,134C 'iter':55B 'let':5A 'line':70B,133C 'method':24B,62B,77C,127C 'miss':33B,86C 'modifi':100C 'nonc':48B,110C 'order':10A,52B,56B,69B,105C,115C,121C,132C 'order-pay':114C 'packag':18B 'page':53B,117C 'partial':25B,78C 'pay':116C 'payment':3A,23B,26B,61B,76C,79C,126C 'piweb':1A,21B,74C 'plugin':4A 'read':66B,102C 'recalcul':63B,128C 'reus':46B,108C 'sequenti':120C 'suppli':119C 'total':73B,136C 'unauthent':43B,97C 'updat':38B,91C 'valu':58B,123C 'vulner':88C 'woocommerc':2A,19B,28B,81C 'wordpress':20B","nicknames":[],"mitigations":[],"who_affected":"Sites running the PiWeb Disable payment method / Partial payment for WooCommerce plugin before 1.1.10.9 with WooCommerce checkout, where customers pay for orders through the order-pay page. Stores without this plugin, or with it already on 1.1.10.9 or later, are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-28T22:17:14+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118757","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118757","severity":null,"published_at":"2026-10-28T22:17:14+00:00","modified_at":"2026-10-28T22:17:14+00:00","first_seen_at":"2026-10-28T22:35:34+00:00","fetched_at":"2026-10-28T22:35:34+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"}