A Universal Cross Site Scripting (UXSS) vulnerability in ClassLink OneClick Extension through 10.7 allows remote attackers to inject JavaScript into any webpage, because a regular expression (validating whether a URL is controlled by ClassLink) is not present in all applicable places.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Link | Tags |
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https://blog.zerdle.net/classlink/ | third party advisory exploit |