{"id":"CVE-2026-100106","kind":"vulnerability","aliases":["CVE-2026-100106"],"related":[],"title":"FiboSearch WooCommerce search plugin: stored XSS via purchased_plan parameter","description":"The FiboSearch – Ajax Search for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'purchased_plan' parameter in all versions up to, and including, 1.34.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the site owner has previously completed the standard Freemius opt-in flow; once that condition is met, any Subscriber can reach the vulnerable handler simply by loading /wp-admin/profile.php with the requisite query parameters.","summary":"The FiboSearch WordPress plugin up to and including 1.34.2 does not sanitize the purchased_plan parameter before storing and outputting it. A logged-in Subscriber can inject script that runs in the browser of anyone who loads the affected page, including administrators.","severity":"medium","cvss":6.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","woocommerce","wordpress","wordpress-plugin"],"not_affected_if":["fixed-version","no-freemius-opt-in"],"how_to_check":"- Check the installed FiboSearch version in the WordPress admin plugin list or with `wp plugin get ajax-search-for-woocommerce --field=version`\n- Confirm whether the Freemius opt-in flow was completed on the site (unknown from the sources)","fix":"- Update FiboSearch (ajax-search-for-woocommerce) to a version later than `1.34.2`; the fixed version number is unknown from the sources\n- Until patched, restrict Subscriber-level accounts or review them for suspicious use (unknown from the sources whether this is sufficient)","status":"open","published_at":"2026-10-16T08:17:11+00:00","first_seen_at":"2026-10-23T21:57:12+00:00","triaged_at":"2026-10-25T03:59:46+00:00","updated_at":"2026-10-25T03:59:46+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:59:46Z","model":"claude-haiku-5-5","output":{"fix":"- Update FiboSearch (ajax-search-for-woocommerce) to a version later than `1.34.2`; the fixed version number is unknown from the sources\n- Until patched, restrict Subscriber-level accounts or review them for suspicious use (unknown from the sources whether this is sufficient)","reach":"internet","title":"FiboSearch WooCommerce search plugin: stored XSS via purchased_plan parameter","impact":"medium","summary":"The FiboSearch WordPress plugin up to and including 1.34.2 does not sanitize the purchased_plan parameter before storing and outputting it. A logged-in Subscriber can inject script that runs in the browser of anyone who loads the affected page, including administrators.","category":"package","nicknames":[],"who_cares":["wordpress","woocommerce","wordpress-plugin"],"confidence":0.6,"needs_auth":"yes","worst_case":"Injected script runs in visitors' browsers and admin sessions","analyst_note":"Confirm the fixed plugin version and whether the Freemius opt-in precondition is the only required setup; check the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-100106 for the fixed release.","how_to_check":"- Check the installed FiboSearch version in the WordPress admin plugin list or with `wp plugin get ajax-search-for-woocommerce --field=version`\n- Confirm whether the Freemius opt-in flow was completed on the site (unknown from the sources)","needs_analyst":true,"not_affected_if":["fixed-version","no-freemius-opt-in"],"who_is_affected":"Sites running FiboSearch – Ajax Search for WooCommerce at version 1.34.2 or earlier where the site owner completed the Freemius opt-in flow. Any user with Subscriber access can reach the vulnerable handler through profile.php, so membership or registration-open sites are the ones to look at first. Sites on a later version or without the Freemius opt-in are not exposed.","user_interaction":"yes","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000709,"input_tokens":3467,"output_tokens":725,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-100106':13A,16A '-2026':12A,15A '/wp-admin/profile.php':166C '1.34.2':31B,95C 'access':115C,131C 'administr':65B 'affect':62B 'ajax':68C 'anyon':58B 'arbitrari':120C 'attack':110C 'authent':109C 'browser':56B 'complet':143C 'condit':153C 'cross':80C 'cross-sit':79C 'cve':11A,14A 'due':96C 'escap':103C 'execut':127C 'exploit':135C 'fibosearch':1A,24B,67C 'flow':150C 'freemius':146C 'handler':162C 'includ':30B,64B,94C 'inject':50B,119C,133C 'input':99C 'insuffici':98C 'level':114C 'load':60B,165C 'log':46B 'logged-in':45B 'make':105C 'met':155C 'opt':148C 'opt-in':147C 'output':42B,102C 'owner':140C 'packag':17B 'page':63B,124C,134C 'paramet':10A,38B,87C,171C 'plan':9A,37B,86C 'plugin':4A,22B,26B,72C 'possibl':107C 'previous':142C 'purchas':8A,36B,85C 'queri':170C 'reach':159C 'requir':136C 'requisit':169C 'run':53B 'sanit':34B,100C 'script':51B,82C,122C 'search':3A,69C 'simpli':163C 'site':81C,139C 'standard':145C 'store':5A,40B,78C 'subscrib':48B,113C,157C 'subscriber-level':112C 'user':130C 'version':90C 'via':7A,83C 'vulner':76C,161C 'web':121C 'whenev':128C 'woocommerc':2A,18B,71C 'wordpress':19B,21B,25B,74C 'wordpress-plugin':20B 'xss':6A","nicknames":[],"mitigations":[],"who_affected":"Sites running FiboSearch – Ajax Search for WooCommerce at version 1.34.2 or earlier where the site owner completed the Freemius opt-in flow. Any user with Subscriber access can reach the vulnerable handler through profile.php, so membership or registration-open sites are the ones to look at first. Sites on a later version or without the Freemius opt-in are not exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T08:17:11+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","cvss_by":"security@wordfence.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-100106","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100106","severity":null,"published_at":"2026-10-16T08:17:11+00:00","modified_at":"2026-10-16T15:16:57+00:00","first_seen_at":"2026-10-23T21:57:12+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"}