{"id":"CVE-2026-111843","kind":"vulnerability","aliases":["CVE-2026-111843"],"related":[],"title":"Rootblox WordPress theme: stored XSS through unsanitized input","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in CozyThemes Rootblox rootblox allows Stored XSS.This issue affects Rootblox: from n/a through 1.0.7.","summary":"CozyThemes Rootblox, a WordPress theme, does not neutralize some user input before rendering it in a page, enabling stored cross-site scripting. An attacker who can submit that input can run JavaScript in the browser of anyone who views the affected page, including administrators.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["other","rootblox","themes","wordpress"],"not_affected_if":["theme-not-installed"],"how_to_check":"- Check the installed Rootblox theme version in the WordPress admin under Appearance > Themes or in the theme's style.css header\n- Treat any installed version up to and including `1.0.7` as affected","fix":"- Update Rootblox to a version later than `1.0.7` once the vendor publishes one (unknown from sources)\n- Until then, restrict contributor-level accounts and review stored content for injected scripts","status":"open","published_at":"2026-10-20T16:17:00+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","triaged_at":"2026-10-25T03:55:34+00:00","updated_at":"2026-10-25T03:55:34+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-25T03:55:34Z","model":"claude-haiku-5-5","output":{"fix":"- Update Rootblox to a version later than `1.0.7` once the vendor publishes one (unknown from sources)\n- Until then, restrict contributor-level accounts and review stored content for injected scripts","reach":"internet","title":"Rootblox WordPress theme: stored XSS through unsanitized input","impact":"medium","summary":"CozyThemes Rootblox, a WordPress theme, does not neutralize some user input before rendering it in a page, enabling stored cross-site scripting. An attacker who can submit that input can run JavaScript in the browser of anyone who views the affected page, including administrators.","category":"other","nicknames":[],"who_cares":["wordpress","themes","rootblox"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker runs scripts in victims' browsers, possibly admin sessions","analyst_note":"Confirm the fixed version and which input fields and user roles are needed to store the payload, from the NVD entry or the CozyThemes/WordPress advisory.","how_to_check":"- Check the installed Rootblox theme version in the WordPress admin under Appearance > Themes or in the theme's style.css header\n- Treat any installed version up to and including `1.0.7` as affected","needs_analyst":true,"not_affected_if":["theme-not-installed"],"who_is_affected":"Sites running the Rootblox theme at version `1.0.7` or earlier are exposed. Sites that do not use this theme are not affected. The sources do not say which input fields or roles are needed to trigger the stored payload.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000617,"input_tokens":3308,"output_tokens":572,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111843':11A,14A '-2026':10A,13A '1.0.7':90C 'administr':63B 'affect':60B,85C 'allow':81C 'anyon':56B 'attack':43B 'browser':54B 'cozythem':19B,78C 'cross':39B,73C 'cross-sit':38B,72C 'cve':9A,12A 'enabl':36B 'generat':71C 'improp':64C 'includ':62B 'input':8A,29B,48B,67C 'issu':84C 'javascript':51B 'n/a':88C 'neutral':26B,65C 'page':35B,61B,70C 'render':31B 'rootblox':1A,16B,20B,79C,80C,86C 'run':50B 'script':41B,75C 'site':40B,74C 'store':4A,37B,82C 'submit':46B 'theme':3A,17B,23B 'unsanit':7A 'user':28B 'view':58B 'vulner':76C 'web':69C 'wordpress':2A,18B,22B 'xss':5A 'xss.this':83C","nicknames":[],"mitigations":[],"who_affected":"Sites running the Rootblox theme at version `1.0.7` or earlier are exposed. Sites that do not use this theme are not affected. The sources do not say which input fields or roles are needed to trigger the stored payload.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T16:17:00+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-2026-111843","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111843","severity":null,"published_at":"2026-10-20T16:17:00+00:00","modified_at":"2026-10-21T11:17:05+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","fetched_at":"2026-10-23T22:28:58+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"}