Open Redirect in collectiveaccess/providence


Reported on

Nov 21st 2021


I found a new way to bypass the Open Redirect with the "redirect" parameter on the login page.

Vulnerable parameter



Proof of Concept

Send users the following login link
After users use their registered accounts to log in, they will be redirected to
Note that I can completely host a domain and create the subdomain like that.


This functionality is not restricted to relative URLs within the application and could be leveraged by an attacker to fool an end-user into believing that a malicious URL they were redirected to is valid. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials.

We are processing your report and will contact the collectiveaccess/providence team within 24 hours. a year ago
We have contacted a member of the collectiveaccess/providence team and are waiting to hear back a year ago
CollectiveAccess validated this vulnerability a year ago
KhanhCM has been awarded the disclosure bounty
The fix bounty is now up for grabs
CollectiveAccess marked this as fixed with commit a45392 a year ago
CollectiveAccess has been awarded the fix bounty
This vulnerability will not receive a CVE
a year ago


Thanks for catching that.

a year ago


Hi @collectiveaccess, can you review and validate my other report to you at Thank you!

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