changedetection.io through 0.60.6 fails to validate the Goto URL action in browser steps, allowing unauthenticated attackers to access internal addresses. Attackers can supply arbitrary internal URLs in the optional_value parameter to retrieve responses from restricted network locations.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/dgtlmoon/changedetection.io
disclosure@vulncheck.com
https://github.com/dgtlmoon/changedetection.io/blob/0.60.6/changedetectionio/br…
disclosure@vulncheck.com
https://github.com/geo-chen/oss/blob/main/changedetection.io.md#finding-2-ssrf-…
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/changedetection-io-through-0.60.6-ssrf-via…
disclosure@vulncheck.com