{"id":"CVE-2026-125854","kind":"vulnerability","aliases":["CVE-2026-125854"],"related":[],"title":"Unbounce Landing Pages: stored XSS lets attackers run scripts on pages","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Unbounce Unbounce Landing Pages unbounce allows Stored XSS.This issue affects Unbounce Landing Pages: from n/a through 1.1.6.","summary":"Unbounce Landing Pages up to version 1.1.6 has a stored cross-site scripting flaw, so input saved in a page is not properly sanitized. An attacker who can put content into a page can run scripts in visitors' browsers.","severity":"high","cvss":7.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["landing-pages","marketing-sites","unbounce","vendor"],"not_affected_if":["unknown"],"how_to_check":"- Check whether your site or tool uses the Unbounce Landing Pages integration at version `1.1.6` or earlier; the sources do not name the file or setting to inspect.","fix":"- Unbounce Landing Pages through `1.1.6`: a fixed version is not stated in the sources.","status":"open","published_at":"2026-11-13T15:17:43+00:00","first_seen_at":"2026-11-13T15:46:19+00:00","triaged_at":"2026-11-13T15:48:32+00:00","updated_at":"2026-11-13T15:48:32+00:00","category":"vendor","confidence":0.5,"triage":{"at":"2026-11-13T15:48:32Z","model":"claude-haiku-5-5","output":{"fix":"- Unbounce Landing Pages through `1.1.6`: a fixed version is not stated in the sources.","reach":"internet","title":"Unbounce Landing Pages: stored XSS lets attackers run scripts on pages","impact":"medium","summary":"Unbounce Landing Pages up to version 1.1.6 has a stored cross-site scripting flaw, so input saved in a page is not properly sanitized. An attacker who can put content into a page can run scripts in visitors' browsers.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["unbounce","landing-pages","marketing-sites"],"confidence":0.5,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Attacker scripts run in visitors' browsers on affected pages","analyst_note":"Confirm the fixed version and attack prerequisites (who can inject content) from the vendor advisory or NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-125854.","how_to_check":"- Check whether your site or tool uses the Unbounce Landing Pages integration at version `1.1.6` or earlier; the sources do not name the file or setting to inspect.","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"The sources say the flaw affects Unbounce Landing Pages through version 1.1.6 and allows stored XSS. Teams using that product's landing pages are exposed; the sources do not describe the exact configuration or data path needed.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00074,"input_tokens":4553,"output_tokens":570,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-125854':14A,17A '-2026':13A,16A '1.1.6':32B,96C 'affect':89C 'allow':85C 'attack':7A,52B 'browser':65B 'content':56B 'cross':37B,75C 'cross-sit':36B,74C 'cve':12A,15A 'flaw':40B 'generat':73C 'improp':66C 'input':42B,69C 'issu':88C 'land':2A,19B,27B,82C,91C 'landing-pag':18B 'let':6A 'market':22B 'marketing-sit':21B 'n/a':94C 'neutral':67C 'page':3A,11A,20B,28B,46B,59B,72C,83C,92C 'proper':49B 'put':55B 'run':8A,61B 'sanit':50B 'save':43B 'script':9A,39B,62B,77C 'site':23B,38B,76C 'store':4A,35B,86C 'unbounc':1A,24B,26B,80C,81C,84C,90C 'vendor':25B 'version':31B 'visitor':64B 'vulner':78C 'web':71C 'xss':5A 'xss.this':87C","nicknames":[],"mitigations":[],"who_affected":"The sources say the flaw affects Unbounce Landing Pages through version 1.1.6 and allows stored XSS. Teams using that product's landing pages are exposed; the sources do not describe the exact configuration or data path needed.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","landingpages","marketingsites","unbounce","vendor"],"campaign_type":null,"search_a":"'-125854':14A,17A '-2026':13A,16A 'attack':7A 'cve':12A,15A 'land':2A 'let':6A 'page':3A,11A 'run':8A 'script':9A 'store':4A 'unbounc':1A 'xss':5A","search_b":"'1.1.6':32B 'attack':52B 'browser':65B 'content':56B 'cross':37B 'cross-sit':36B 'flaw':40B 'input':42B 'land':19B,27B 'landing-pag':18B 'market':22B 'marketing-sit':21B 'page':20B,28B,46B,59B 'proper':49B 'put':55B 'run':61B 'sanit':50B 'save':43B 'script':39B,62B 'site':23B,38B 'store':35B 'unbounc':24B,26B 'vendor':25B 'version':31B 'visitor':64B","search_c":"'1.1.6':96C 'affect':89C 'allow':85C 'cross':75C 'cross-sit':74C 'generat':73C 'improp':66C 'input':69C 'issu':88C 'land':82C,91C 'n/a':94C 'neutral':67C 'page':72C,83C,92C 'script':77C 'site':76C 'store':86C 'unbounc':80C,81C,84C,90C 'vulner':78C 'web':71C 'xss.this':87C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-13T15:17:43+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-2026-125854","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-125854","severity":null,"published_at":"2026-11-13T15:17:43+00:00","modified_at":"2026-11-13T15:17:43+00:00","first_seen_at":"2026-11-13T15:46:19+00:00","fetched_at":"2026-11-13T15:46:19+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}