ADVISORIES
GEM
PATCHED VERSIONS
- >= 10.0.2
DESCRIPTION
Summary
A publisher on a publify application is able to perform a cross-site
scripting attack on an administrator using the redirect functionality.
Details
A publisher on a publify application is able to perform a cross-site
scripting attack on an administrator using the redirect functionality.
The exploitation of this XSS vulnerability requires the administrator
to click a malicious link.
We can create a redirect to a javascript:alert() URL. Whilst the
redirect itself doesn't work, on the administrative panel, an a tag
is created with the payload as the URI. Upon clicking this link,
the XSS is triggered.
An attack could attempt to hide their payload by using HTML, or other encodings, as to not make it obvious to an administrator that this is a malicious link.
Impact
A publisher may attempt to use this vulnerability to escalate their privileges and become an administrator."