| Titre | Eyeo GmbH Adblock Plus 4.36.2 Privilege Escalation |
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| Description | A missing origin validation in premium.preload.js allows any JavaScript
running in the context of accounts.adblockplus.org to forge a
payment_success postMessage event and activate the Premium subscription
without payment. The extension background (background.js) further fails
to bind the submitted userId to a verified payment session before
persisting it and initiating license_check. Tested on v4.36.2,
reproducible in ~30 seconds with a single line of JavaScript. |
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| La source | ⚠️ https://github.com/xryj920/CVE/blob/main/adblock_plus_CVE_report.md |
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| Utilisateur | DRXYJ (UID 46872) |
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| Soumission | 31/03/2026 11:44 (il y a 2 mois) |
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| Modérer | 02/05/2026 18:03 (1 month later) |
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| Statut | Accepté |
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| Entrée VulDB | 360856 [eyeo Adblock Plus jusqu’à 4.36.2 sur Chrome Legacy Premium Activation premium.preload.js postMessage élévation de privilèges] |
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| Points | 20 |
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