{"id":"CVE-2026-57639","kind":"vulnerability","aliases":["CVE-2026-57639"],"related":[],"title":"WP Booking System WordPress plugin: reflected XSS through version 2.1.0.6","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Roland Murg WP Booking System wp-booking-system allows Reflected XSS.This issue affects WP Booking System: from n/a through 2.1.0.6.","summary":"The WP Booking System WordPress plugin by Roland Murg does not neutralize input in generated pages, enabling reflected cross-site scripting. An attacker can run scripts in a visitor's browser by tricking them into opening a crafted link.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","wordpress","wp-booking-system"],"not_affected_if":["patched-version","plugin-not-installed"],"how_to_check":"- Check the installed plugin version in the WordPress admin under Plugins, or read the `Version` header in `wp-content/plugins/wp-booking-system/` plugin main file.\n- Confirm whether the plugin is active on the site.","fix":"- WP Booking System: no fixed version stated in the sources; affected through `2.1.0.6`.","status":"open","published_at":"2026-11-04T08:17:17+00:00","first_seen_at":"2026-11-04T08:25:59+00:00","triaged_at":"2026-11-04T08:26:32+00:00","updated_at":"2026-11-04T08:26:32+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-11-04T08:26:32Z","model":"claude-haiku-5-5","output":{"fix":"- WP Booking System: no fixed version stated in the sources; affected through `2.1.0.6`.","reach":"internet","title":"WP Booking System WordPress plugin: reflected XSS through version 2.1.0.6","impact":"medium","summary":"The WP Booking System WordPress plugin by Roland Murg does not neutralize input in generated pages, enabling reflected cross-site scripting. An attacker can run scripts in a visitor's browser by tricking them into opening a crafted link.","audience":"businesses","category":"package","nicknames":[],"who_cares":["wordpress","wp-booking-system"],"confidence":0.7,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker runs scripts in a victim's browser session on the site","analyst_note":"Check the NVD entry and the plugin's changelog for a fixed version after 2.1.0.6 and confirm the affected-version range.","how_to_check":"- Check the installed plugin version in the WordPress admin under Plugins, or read the `Version` header in `wp-content/plugins/wp-booking-system/` plugin main file.\n- Confirm whether the plugin is active on the site.","plain_action":"","needs_analyst":true,"not_affected_if":["plugin-not-installed","patched-version"],"who_is_affected":"Websites running the WP Booking System WordPress plugin up to and including version 2.1.0.6 are exposed. Exploitation requires a visitor to open a crafted link, so the risk is mainly to logged-in administrators and site visitors. Sites without the plugin installed are not affected.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000705,"input_tokens":4125,"output_tokens":586,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A '-57639':13A,16A '2.1.0.6':10A,97C 'affect':90C 'allow':86C 'attack':46B 'book':2A,21B,25B,80C,84C,92C 'browser':54B 'craft':61B 'cross':42B,72C 'cross-sit':41B,71C 'cve':11A,14A 'enabl':39B 'generat':37B,70C 'improp':63C 'input':35B,66C 'issu':89C 'link':62B 'murg':31B,78C 'n/a':95C 'neutral':34B,64C 'open':59B 'packag':17B 'page':38B,69C 'plugin':5A,28B 'reflect':6A,40B,87C 'roland':30B,77C 'run':48B 'script':44B,49B,74C 'site':43B,73C 'system':3A,22B,26B,81C,85C,93C 'trick':56B 'version':9A 'visitor':52B 'vulner':75C 'web':68C 'wordpress':4A,18B,27B 'wp':1A,20B,24B,79C,83C,91C 'wp-booking-system':19B,82C 'xss':7A 'xss.this':88C","nicknames":[],"mitigations":[],"who_affected":"Websites running the WP Booking System WordPress plugin up to and including version 2.1.0.6 are exposed. Exploitation requires a visitor to open a crafted link, so the risk is mainly to logged-in administrators and site visitors. Sites without the plugin installed are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","package","wordpress","wpbookingsystem"],"campaign_type":null,"first_public_at":"2026-11-04T08:17:17+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","cvss_by":"audit@patchstack.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-57639","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57639","severity":null,"published_at":"2026-11-04T08:17:17+00:00","modified_at":"2026-11-04T08:17:17+00:00","first_seen_at":"2026-11-04T08:25:59+00:00","fetched_at":"2026-11-04T08:25:59+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"}