{"id":"CVE-2026-86794","kind":"vulnerability","aliases":["CVE-2026-86794"],"related":[],"title":"Community Events WordPress plugin: unauthenticated stored script injection into admin dashboard","description":"The Community Events WordPress plugin before 1.6.0 does not have authorisation or nonce checks when processing public event submissions, and does not escape several of the submitted values before outputting them in the administration dashboard and on the public calendar, allowing unauthenticated users to inject arbitrary web scripts that will execute in the browser of an administrator reviewing the submission.","summary":"The Community Events WordPress plugin before 1.6.0 accepts public event submissions without authorisation or nonce checks and does not escape several submitted values. An unauthenticated visitor can store scripts that run in the browser of an administrator who reviews the submission.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["community-events-plugin","other","self-hosted","wordpress"],"not_affected_if":["no-public-submissions","plugin-not-installed","version-1.6.0-or-later"],"how_to_check":"- Check the installed version of the Community Events plugin in the WordPress admin plugins list; versions before `1.6.0` are affected.\n- Look for pending event submissions from unknown visitors in the plugin's admin pages.","fix":"- Community Events plugin: move to `1.6.0` or later, per the source.","status":"open","published_at":"2026-10-29T06:17:24+00:00","first_seen_at":"2026-10-29T06:53:14+00:00","triaged_at":"2026-10-29T06:54:34+00:00","updated_at":"2026-10-29T06:54:34+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-29T06:54:34Z","model":"claude-haiku-5-5","output":{"fix":"- Community Events plugin: move to `1.6.0` or later, per the source.","reach":"internet","title":"Community Events WordPress plugin: unauthenticated stored script injection into admin dashboard","impact":"medium","summary":"The Community Events WordPress plugin before 1.6.0 accepts public event submissions without authorisation or nonce checks and does not escape several submitted values. An unauthenticated visitor can store scripts that run in the browser of an administrator who reviews the submission.","audience":"businesses","category":"other","nicknames":[],"who_cares":["wordpress","community-events-plugin","self-hosted"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Attacker script runs in an administrator's browser session","analyst_note":"","how_to_check":"- Check the installed version of the Community Events plugin in the WordPress admin plugins list; versions before `1.6.0` are affected.\n- Look for pending event submissions from unknown visitors in the plugin's admin pages.","plain_action":"","needs_analyst":false,"not_affected_if":["plugin-not-installed","version-1.6.0-or-later","no-public-submissions"],"who_is_affected":"Sites running the Community Events WordPress plugin that accept public event submissions and have administrators who review them in the dashboard. Sites without the plugin, or without public submission forms, are not exposed through this path.","user_interaction":"yes","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000674,"input_tokens":4135,"output_tokens":522,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-86794':14A,17A '1.6.0':33B,74C 'accept':34B 'admin':10A 'administr':63B,101C,124C 'allow':108C 'arbitrari':113C 'authoris':39B,78C 'browser':60B,121C 'calendar':107C 'check':42B,81C 'communiti':1A,19B,28B,69C 'community-events-plugin':18B 'cve':12A,15A 'dashboard':11A,102C 'escap':46B,90C 'event':2A,20B,29B,36B,70C,85C 'execut':118C 'host':25B 'inject':8A,112C 'nonc':41B,80C 'output':97C 'plugin':4A,21B,31B,72C 'process':83C 'public':35B,84C,106C 'review':65B,125C 'run':57B 'script':7A,55B,115C 'self':24B 'self-host':23B 'sever':47B,91C 'store':6A,54B 'submiss':37B,67B,86C,127C 'submit':48B,94C 'unauthent':5A,51B,109C 'user':110C 'valu':49B,95C 'visitor':52B 'web':114C 'without':38B 'wordpress':3A,26B,30B,71C","nicknames":[],"mitigations":[],"who_affected":"Sites running the Community Events WordPress plugin that accept public event submissions and have administrators who review them in the dashboard. Sites without the plugin, or without public submission forms, are not exposed through this path.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"first_public_at":"2026-10-29T06:17:24+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-86794","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86794","severity":null,"published_at":"2026-10-29T06:17:24+00:00","modified_at":"2026-10-29T06:17:24+00:00","first_seen_at":"2026-10-29T06:53:14+00:00","fetched_at":"2026-10-29T06:53:14+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"}