CleanShot X for macOS insecurely deserializes untrusted data embedded in a .cleanshot project file (editable screenshot annotations). Exploitation requires an attacker to craft a malicious .cleanshot file, deliver it to the target, and have the target open it; the payload then executes automatically during parsing, resulting in arbitrary code execution in the context of the current user. Users who have never opened a .cleanshot file from an untrusted source are not affected by this vulnerability.
This vulnerability was fixed in versions: 4.5.2, 4.6.3, 4.7.8 and 4.8.10
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 4
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Mtw Cleanshot_X
cpe:2.3:a:mtw:cleanshot_x:*:*:macos:*:*:*:*:*
|
4.0.0
|
4.5.2
|
|
Mtw Cleanshot_X
cpe:2.3:a:mtw:cleanshot_x:*:*:macos:*:*:*:*:*
|
4.6.0
|
4.6.3
|
|
Mtw Cleanshot_X
cpe:2.3:a:mtw:cleanshot_x:*:*:macos:*:*:*:*:*
|
4.7.0
|
4.7.8
|
|
Mtw Cleanshot_X
cpe:2.3:a:mtw:cleanshot_x:*:*:macos:*:*:*:*:*
|
4.8.0
|
4.8.10
|