A vulnerability has been reported in the Workflow module for Drupal, which can be exploited by malicious users to conduct script insertion attacks.
Input passed to the workflow messages shown on the workflow tab is not properly sanitised before being stored. This can be exploited to insert arbitrary HTML and script code, which is executed in a user's browser session in context of an affected site when the malicious data is viewed.
Successful exploitation requires valid user credentials.
The vulnerability is reported in all 4.7.x versions before 4.7.x-1.2 and all 5.x versions before 5.x-1.2.
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