{"id":"CVE-2026-109995","kind":"vulnerability","aliases":["CVE-2026-109995"],"related":[],"title":"WordPress Advanced Views plugin: unauthenticated stored XSS through comment parameter","description":"The Advanced Views – Display Framework for Gutenberg & Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 3.9.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is exploitable even against pending or unapproved comments, as the plugin's get_comment() lookup applies no approval-status filter, meaning a payload executes for any visitor loading an avf-layout block bound to the attacker's comment ID before the comment is ever reviewed.","summary":"The Advanced Views WordPress plugin up to and including 3.9.6 does not sanitize the 'comment' parameter, so unauthenticated visitors can store script that runs for anyone loading the affected page. The plugin also displays unapproved comments, so the payload runs before a moderator reviews it.","severity":"high","cvss":7.2,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["package","self-hosted","wordpress","wordpress-plugins"],"not_affected_if":["patched-version","plugin-not-installed"],"how_to_check":"- Check the installed version of the Advanced Views plugin (Display Framework for Gutenberg & Elementor) in the WordPress admin plugins list; versions up to and including `3.9.6` are affected.\n- Search page content for `avf-layout` blocks bound to comment IDs and look for injected script tags.","fix":"- Update the Advanced Views plugin to a version later than `3.9.6`; the sources do not name the fixed version, so check the plugin's changelog.\n- Until patched, deactivate the plugin or restrict comment submission to trusted users.","status":"open","published_at":"2026-10-27T12:17:04+00:00","first_seen_at":"2026-10-27T12:31:37+00:00","triaged_at":"2026-10-27T12:32:05+00:00","updated_at":"2026-10-27T12:32:05+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-27T12:32:05Z","model":"claude-haiku-5-5","output":{"fix":"- Update the Advanced Views plugin to a version later than `3.9.6`; the sources do not name the fixed version, so check the plugin's changelog.\n- Until patched, deactivate the plugin or restrict comment submission to trusted users.","reach":"internet","title":"WordPress Advanced Views plugin: unauthenticated stored XSS through comment parameter","impact":"medium","summary":"The Advanced Views WordPress plugin up to and including 3.9.6 does not sanitize the 'comment' parameter, so unauthenticated visitors can store script that runs for anyone loading the affected page. The plugin also displays unapproved comments, so the payload runs before a moderator reviews it.","category":"package","nicknames":[],"who_cares":["wordpress","wordpress-plugins","self-hosted"],"confidence":0.8,"needs_auth":"no","worst_case":"Attacker script runs in visitors' browsers on affected pages, hijacking sessions.","analyst_note":"Confirm the first patched plugin version from the NVD or plugin changelog at https://nvd.nist.gov/vuln/detail/CVE-2026-109995; the sources give no fixed version.","how_to_check":"- Check the installed version of the Advanced Views plugin (Display Framework for Gutenberg & Elementor) in the WordPress admin plugins list; versions up to and including `3.9.6` are affected.\n- Search page content for `avf-layout` blocks bound to comment IDs and look for injected script tags.","needs_analyst":true,"not_affected_if":["plugin-not-installed","patched-version"],"who_is_affected":"Sites running the Advanced Views plugin at version 3.9.6 or earlier that use avf-layout blocks bound to comments are exposed, since the injected script runs for any visitor of those pages. Sites without this plugin, or with it at a later version, are not affected.","user_interaction":"yes","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000686,"input_tokens":3461,"output_tokens":680,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-109995':13A,16A '-2026':12A,15A '3.9.6':34B,99C 'access':128C 'advanc':2A,26B,70C 'affect':53B 'also':57B 'anyon':50B 'appli':149C 'approv':152C 'approval-status':151C 'arbitrari':117C 'attack':114C,171C 'avf':165C 'avf-layout':164C 'block':167C 'bound':168C 'comment':9A,39B,60B,90C,141C,147C,173C,177C 'cross':85C 'cross-sit':84C 'cve':11A,14A 'display':58B,72C 'due':100C 'elementor':76C 'escap':107C 'even':136C 'ever':179C 'execut':124C,158C 'exploit':135C 'filter':154C 'framework':73C 'get':146C 'gutenberg':75C 'host':20B 'id':174C 'includ':33B,98C 'inject':116C,130C 'input':103C 'insuffici':102C 'layout':166C 'load':51B,162C 'lookup':148C 'make':109C 'mean':155C 'moder':67B 'output':106C 'packag':17B 'page':54B,121C,131C 'paramet':10A,40B,91C 'payload':63B,157C 'pend':138C 'plugin':4A,24B,29B,56B,77C,144C 'possibl':111C 'review':68B,180C 'run':48B,64B 'sanit':37B,104C 'script':46B,87C,119C 'self':19B 'self-host':18B 'site':86C 'status':153C 'store':6A,45B,83C 'unapprov':59B,140C 'unauthent':5A,42B,113C 'user':127C 'version':94C 'via':88C 'view':3A,27B,71C 'visitor':43B,161C 'vulner':81C,133C 'web':118C 'whenev':125C 'wordpress':1A,21B,23B,28B,79C 'wordpress-plugin':22B 'xss':7A","nicknames":[],"mitigations":[],"who_affected":"Sites running the Advanced Views plugin at version 3.9.6 or earlier that use avf-layout blocks bound to comments are exposed, since the injected script runs for any visitor of those pages. Sites without this plugin, or with it at a later version, are not affected.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T12:17:04+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","cvss_by":"security@wordfence.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-109995","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109995","severity":null,"published_at":"2026-10-27T12:17:04+00:00","modified_at":"2026-10-27T12:17:04+00:00","first_seen_at":"2026-10-27T12:31:37+00:00","fetched_at":"2026-10-27T12:31:37+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"}