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GHSA-5f5v-5c3v-gw5v
No affected components available
Non IE browsers don’t appear to be affected, but I haven’t tested a wide range of browsers to be sure
Requests that come through from IE do NOT appear to encode all entities in the URL string, meaning they are inserted into output content directly by SSViewer::process() when rewriting hashlinks, as it directly outputs $_SERVER[‘REQUEST_URI’]
Example IE8 request 127.0.0.1 - - [18/Jun/2014:14:13:42 +1000] “GET /site/cars/brands/toyota?one=1\”onmouseover=\”alert(‘things’);\” HTTP/1.1” 200
Example FF request 127.0.0.1 - - [18/Jun/2014:14:14:22 +1000] “GET /site/cars/brands/toyota?one=1%22onmouseover=%22alert(%27things%27);%22 HTTP/1.1” 200
This causes any hash anchor to have the JS code inserted into the page as-is.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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