Critical Vulnerability in Adobe Acrobat Chrome Extension Exposes User Data
In June 2026, a critical vulnerability (CVE-2026-48294) was identified in the Adobe Acrobat PDF Extension for Chrome, affecting versions up to 26.5.2.2. This Universal Cross-Site Scripting (UXSS) flaw allowed attackers to bypass the browser's same-origin policy, enabling unauthorized access to users' session data across different web origins. Exploitation required user interaction, such as visiting a maliciously crafted URL or interacting with a compromised webpage. The vulnerability was promptly patched by Adobe following its disclosure. The incident underscores the persistent risks associated with browser extensions, especially those with extensive user bases like Adobe Acrobat's, which boasts over 314 million users. It highlights the importance of regular security assessments and prompt patching to mitigate potential data breaches stemming from such vulnerabilities.
Kill Chain