InstantCMS is a free and open source content management system. In photo upload function in the photo album page there is no input validation taking place. Due to this attackers are able to inject the XSS (Cross Site Scripting) payload and execute. This vulnerability is fixed in 2.16.3.
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://github.com/instantsoft/icms2/security/advisories/GHSA-f6cf-jg84-fw29 | patch vendor advisory exploit |
https://github.com/instantsoft/icms2/commit/e02de2fa1850bb40c9b2050b9256c838a0ea7aa3 | patch |