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GHSA-vfm5-rmrh-j26v
No affected components available
There is a possible Cross Site Scripting (XSS) vulnerability in the content_security_policy helper in Action Pack.
Impact
Applications which set Content-Security-Policy (CSP) headers dynamically from untrusted user input may be vulnerable to carefully crafted inputs being able to inject new directives into the CSP. This could lead to a bypass of the CSP and its protection against XSS and other attacks.
Releases
The fixed releases are available at the normal locations.
Workarounds
Applications can avoid setting CSP headers dynamically from untrusted input, or can validate/sanitize that input.
Credits
Thanks to ryotak for the report!
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.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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