Cotonti through 1.0.0 fails to validate redirect destinations in page bodies prefixed with redir:, allowing authenticated users with page creation or edit permissions to store redirects to arbitrary external hosts. Attackers can craft pages on trusted domains that redirect visitors to malicious sites for phishing attacks without administrative privileges.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/Cotonti/Cotonti
disclosure@vulncheck.com
https://github.com/Cotonti/Cotonti/blob/1.0.0/modules/page/inc/page.main.php
disclosure@vulncheck.com
https://github.com/Cotonti/Cotonti/issues/1893
disclosure@vulncheck.com
https://github.com/Cotonti/Cotonti/pull/1901
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/cotonti-through-1.0.0-stored-open-redirect…
disclosure@vulncheck.com