23 Oct 2026 15:48:27 UTC
TripleLift video-bundle.js DOM-based XSS via postMessage
cve-program · CVE-2026-82019 · Published
CVE-2026-82019
TripleLift video-bundle.js DOM-based XSS via postMessage
CVSS 4.0 2.3 LOWCVSS 3.1 4.2 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-82019
PublishedTripleLift'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.
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