Vulnerabilities

Opera 6.0.3, when using Squid 2.4 for HTTPS proxying, does not properly handle when accepting a non-global certificate authority (CA) certificate from a site and establishing a subsequent HTTPS connection, which allows r…

Cross-site scripting (XSS) vulnerability in the FTP view feature in Opera 6.0 and 6.01 through 6.04 allows remote attackers to inject arbitrary web script or HTML via the title tag of an FTP URL.

Buffer overflow in Opera 6.01 allows remote attackers to cause a denial of service (crash) via an IMG tag with large width and height attributes.

Opera 6.0.1 allows remote attackers to upload arbitrary file contents when users press a key corresponding to the JavaScript (1) event.ctrlKey or (2) event.shiftKey onkeydown event contained in a webpage.

Microsoft Internet Explorer 6.0 and possibly others allows remote attackers to upload arbitrary file contents when users press a key corresponding to the JavaScript (1) event.ctrlKey or (2) event.shiftKey onkeydown event…

Opera 5.11 allows remote attackers to cause a denial of service (CPU consumption and memory leak) via a web page with a large number of images.

The International Domain Name (IDN) support in Firefox 1.0, Camino .8.5, and Mozilla before 1.7.6 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certifi…

Netscape 6.2.3 and earlier, and Mozilla 1.0.1, allow remote attackers to corrupt heap memory and execute arbitrary code via a GIF image with a zero width.

Opera 6.0.1 and 6.0.2 allows a remote web site to upload arbitrary files from the client system, without prompting the client, via an input type=file tag whose value contains a newline.

Opera 6.01, 6.0, and 5.12 allows remote attackers to execute arbitrary JavaScript in the security context of other sites by setting the location of a frame or iframe to a Javascript: URL.

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 arbit…

Cross-site scripting vulnerability in Opera 6.0 and earlier allows remote attackers to execute arbitrary script via an Extended HTML Form, whose output from the remote server is not properly cleansed.

Opera 5.0 for Linux does not properly handle malformed HTTP headers, which allows remote attackers to cause a denial of service, possibly with a header whose value is the same as a MIME header name.

Opera 6.0 and earlier allows remote attackers to access sensitive information such as cookies and links for other domains via Javascript that uses setTimeout to (1) access data after a new window to the domain has been o…

Opera 3.2.1 allows remote attackers to cause a denial of service (application crash) via a URL that contains an extra / in the http:// tag.