An issue exists within Piwigo before v.14.2.0 allowing a malicious user to take over the application. This exploit involves chaining a Cross Site Request Forgery vulnerability to issue a Stored Cross Site Scripting payload stored within an Admin user's dashboard, executing remote JavaScript. This can be used to upload a new PHP file under an administrator and directly call that file from the victim's instance to connect back to a malicious listener.
CVSS Details
- CVSS 3.1 Base Score: 5.4
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)
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