{"id":"CVE-2026-114711","kind":"vulnerability","aliases":["CVE-2026-114711"],"related":[],"title":"MultiVendorX: subscriber stored XSS in versions up to 5.0.20","description":"Subscriber Cross Site Scripting (XSS) in MultiVendorX <= 5.0.20 versions.","summary":"MultiVendorX versions up to 5.0.20 contain a cross-site scripting flaw reachable by a subscriber-level user. An attacker can get script to run in another user's browser session.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["marketplace-plugin","multivendorx","package","wordpress"],"not_affected_if":["plugin-not-installed","version-above-5.0.20"],"how_to_check":"- Look up the installed MultiVendorX plugin version in the WordPress admin plugins list or the plugin's main file header.","fix":"- Move to a version later than `5.0.20`; the exact fixed version is unknown.","status":"open","published_at":"2026-10-30T19:18:12+00:00","first_seen_at":"2026-10-30T19:25:28+00:00","triaged_at":"2026-10-30T19:26:26+00:00","updated_at":"2026-10-30T19:26:26+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-30T19:26:26Z","model":"claude-haiku-5-5","output":{"fix":"- Move to a version later than `5.0.20`; the exact fixed version is unknown.","reach":"internet","title":"MultiVendorX: subscriber stored XSS in versions up to 5.0.20","impact":"medium","summary":"MultiVendorX versions up to 5.0.20 contain a cross-site scripting flaw reachable by a subscriber-level user. An attacker can get script to run in another user's browser session.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","multivendorx","marketplace-plugin"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Script runs in other users' browsers, possibly stealing sessions.","analyst_note":"Confirm the fixed version and affected feature from the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-114711 or the vendor changelog.","how_to_check":"- Look up the installed MultiVendorX plugin version in the WordPress admin plugins list or the plugin's main file header.\n- unknown for further checks; the sources do not say.","plain_action":"","needs_analyst":true,"not_affected_if":["plugin-not-installed","version-above-5.0.20"],"who_is_affected":"Sites running the MultiVendorX WordPress marketplace plugin at version 5.0.20 or earlier. The flaw needs a subscriber-role account, so sites with open registration are more exposed. The sources do not say which feature path is affected.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000687,"input_tokens":4065,"output_tokens":561,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-114711':12A,15A '-2026':11A,14A '5.0.20':9A,26B,61C 'anoth':49B 'attack':42B 'browser':52B 'contain':27B 'cross':30B,55C 'cross-sit':29B 'cve':10A,13A 'flaw':33B 'get':44B 'level':39B 'marketplac':17B 'marketplace-plugin':16B 'multivendorx':1A,19B,22B,60C 'packag':20B 'plugin':18B 'reachabl':34B 'run':47B 'script':32B,45B,57C 'session':53B 'site':31B,56C 'store':3A 'subscrib':2A,38B,54C 'subscriber-level':37B 'user':40B,50B 'version':6A,23B,62C 'wordpress':21B 'xss':4A,58C","nicknames":[],"mitigations":[],"who_affected":"Sites running the MultiVendorX WordPress marketplace plugin at version 5.0.20 or earlier. The flaw needs a subscriber-role account, so sites with open registration are more exposed. The sources do not say which feature path is affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"first_public_at":"2026-10-30T19:18:12+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","cvss_by":"audit@patchstack.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114711","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114711","severity":null,"published_at":"2026-10-30T19:18:12+00:00","modified_at":"2026-10-30T19:18:12+00:00","first_seen_at":"2026-10-30T19:25:28+00:00","fetched_at":"2026-10-30T19:25:28+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"}