{"id":"CVE-2026-82019","title":"TripleLift's ad rendering script (video-bundle.js) contains a DOM-based cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a publisher's domain by sending crafted postMessage paylo…","summary":"TripleLift's ad rendering script (video-bundle.js) contains a DOM-based cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a publisher's domain by sending crafted postMessage paylo…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"TripleLift","product":"video-bundle.js","affected":["video-bundle.js < 2026-04-28"],"published":"2026-09-14","updated":"2026-09-14","sourceUpdated":"2026-09-14T16:17:19.513","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82019","references":[{"url":"https://hussein-mahmoud7.medium.com/cve-2026-82019-how-a-random-ad-led-to-dom-xss-while-testing-chess-com-f043584e1e68","label":"disclosure@vulncheck.com"},{"url":"https://triplelift.com/creative-technology/","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/triplelift-video-bundle-js-dom-based-xss-via-postmessage","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"ingestedAt":"2026-09-14T15:23:07.424Z","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-14T15:29:39.237880Z"},"epss":0.00224,"epssPercentile":0.13325,"slug":"CVE-2026-82019","body":"## Overview\n\nTripleLift's ad rendering script (video-bundle.js) contains a DOM-based cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a publisher's domain by sending crafted postMessage payloads without origin validation. Attackers can cause a victim to visit an attacker-controlled page that sends malicious postMessage events to a publisher page running the ad script, enabling session hijacking and unauthorized DOM manipulation.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":35,"depthScoreParts":{"impact":23.1,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":203101,"id":"CVE-2026-82019","ts":1789409574846,"field":"exploit_available","old":"false","new":"true"}]}