{"id":"CVE-2026-116749","kind":"vulnerability","aliases":["CVE-2026-116749"],"related":[],"title":"VikRentCar WordPress plugin: stored script injection via className parameter","description":"The VikRentCar Car Rental Management System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'className' parameter in all versions up to, and including, 1.4.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. wp_kses_post() applied at save time does not neutralize the payload because the injection lands in an HTML-attribute context where only a raw double-quote is needed to break out, and block-comment JSON encoding of that quote is decoded back to a literal character by do_blocks() at render time.","summary":"The VikRentCar Car Rental Management System WordPress plugin up to and including 1.4.10 fails to sanitize the className parameter. An authenticated contributor can store a script that runs in the browser of any user who opens the injected page.","severity":"medium","cvss":6.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","self-hosted","wordpress","wordpress-plugins"],"not_affected_if":["no-contributor-accounts","no-plugin-installed"],"how_to_check":"- Check the installed VikRentCar plugin version in the WordPress admin plugins list; versions up to and including `1.4.10` are affected.\n- unknown","fix":"- Update the VikRentCar Car Rental Management System plugin to a version later than `1.4.10`.\n- unknown","status":"open","published_at":"2026-10-28T07:16:47+00:00","first_seen_at":"2026-10-28T07:31:38+00:00","triaged_at":"2026-10-28T07:32:57+00:00","updated_at":"2026-10-28T07:32:57+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-28T07:32:57Z","model":"claude-haiku-5-5","output":{"fix":"- Update the VikRentCar Car Rental Management System plugin to a version later than `1.4.10`.\n- unknown","reach":"internet","title":"VikRentCar WordPress plugin: stored script injection via className parameter","impact":"medium","summary":"The VikRentCar Car Rental Management System WordPress plugin up to and including 1.4.10 fails to sanitize the className parameter. An authenticated contributor can store a script that runs in the browser of any user who opens the injected page.","category":"package","nicknames":[],"who_cares":["wordpress","wordpress-plugins","self-hosted"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker script runs in victims' browsers on the site.","analyst_note":"","how_to_check":"- Check the installed VikRentCar plugin version in the WordPress admin plugins list; versions up to and including `1.4.10` are affected.\n- unknown","needs_analyst":false,"not_affected_if":["no-plugin-installed","no-contributor-accounts"],"who_is_affected":"Sites running the VikRentCar Car Rental Management System plugin at version 1.4.10 or earlier where contributor-level or higher accounts exist. The injected script runs for any visitor or staff member who opens a page containing the payload. Sites without the plugin or with no contributor-level users are not exposed by this flaw.","user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000601,"input_tokens":3458,"output_tokens":511,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-116749':12A,15A '-2026':11A,14A '1.4.10':36B,91C 'access':111C,127C 'appli':134C 'arbitrari':116C 'attack':106C 'attribut':151C 'authent':44B,105C 'back':176C 'block':167C,183C 'block-com':166C 'break':163C 'browser':54B 'car':26B,65C 'charact':180C 'classnam':8A,41B,82C 'comment':168C 'context':152C 'contributor':45B,109C 'contributor-level':108C 'cross':77C 'cross-sit':76C 'cve':10A,13A 'decod':175C 'doubl':158C 'double-quot':157C 'due':92C 'encod':170C 'escap':99C 'execut':123C 'fail':37B 'host':19B 'html':150C 'html-attribut':149C 'includ':35B,90C 'inject':6A,61B,115C,129C,145C 'input':95C 'insuffici':94C 'json':169C 'kses':132C 'land':146C 'level':110C 'liter':179C 'make':101C 'manag':28B,67C 'need':161C 'neutral':140C 'open':59B 'output':98C 'packag':16B 'page':62B,120C,130C 'paramet':9A,42B,83C 'payload':142C 'plugin':3A,23B,31B,69C 'possibl':103C 'post':133C 'quot':159C,173C 'raw':156C 'render':185C 'rental':27B,66C 'run':51B 'sanit':39B,96C 'save':136C 'script':5A,49B,79C,118C 'self':18B 'self-host':17B 'site':78C 'store':4A,47B,75C 'system':29B,68C 'time':137C,186C 'user':57B,126C 'version':86C 'via':7A,80C 'vikrentcar':1A,25B,64C 'vulner':73C 'web':117C 'whenev':124C 'wordpress':2A,20B,22B,30B,71C 'wordpress-plugin':21B 'wp':131C","nicknames":[],"mitigations":[],"who_affected":"Sites running the VikRentCar Car Rental Management System plugin at version 1.4.10 or earlier where contributor-level or higher accounts exist. The injected script runs for any visitor or staff member who opens a page containing the payload. Sites without the plugin or with no contributor-level users are not exposed by this flaw.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-28T07:16:47+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-2026-116749","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116749","severity":null,"published_at":"2026-10-28T07:16:47+00:00","modified_at":"2026-10-28T07:16:47+00:00","first_seen_at":"2026-10-28T07:31:38+00:00","fetched_at":"2026-10-28T07:31:38+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"}