CVE-2002-0270: Opera Software Opera Web Browser

Medium severity, CVSS 4.3. EPSS: 4.7% chance of exploitation in the next 30 days.

Opera, when configured with the "Determine action by MIME type" option disabled, interprets an object as an HTML document even when its MIME Content-Type is text/plain, which could allow remote attackers to execute arbitrary script in documents that the user does not expect, possibly through web applications that use a text/plain type to prevent cross-site scripting attacks.

Affected products

Published 2002-05-29. Last modified 2026-06-16.