Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.73 and 9.7.1-alpha.4, a file can be uploaded with a filename extension that passes the file extension allowlist (e.g., .txt) but with a Content-Type header that differs from the extension (e.g., text/html). The Content-Type is passed to the storage adapter without consistency validation.
Storage adapters that store and serve the provided Content-Type (such as S3 or GCS) serve the file with the mismatched Content-Type. The default GridFS adapter is not affected because it derives Content-Type from the filename at serving time. This vulnerability is fixed in 8.6.73 and 9.7.1-alpha.4.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 5
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Parseplatform Parse-Server
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
|
— |
8.6.73
|
|
Parseplatform Parse-Server
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
|
9.0.0
|
9.7.1
|
|
Parseplatform Parse-Server
cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha1:*:*:*:node.js:*:*
|
— | — |
|
Parseplatform Parse-Server
cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha2:*:*:*:node.js:*:*
|
— | — |
|
Parseplatform Parse-Server
cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha3:*:*:*:node.js:*:*
|
— | — |