Coraza from 3.0.4 before 3.8.1 contains a request body inspection bypass because request-body processor selection compares the entire Content-Type value exactly, so URL-encoded bodies whose Content-Type carries a media-type parameter are never parsed. Unauthenticated attackers can send application/x-www-form-urlencoded; charset=UTF-8 to keep ARGS_POST and REQUEST_BODY empty, evading body rules while the backend still processes the payload.
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
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Coraza Coraza
cpe:2.3:a:coraza:coraza:*:*:*:*:*:*:*:*
|
3.0.4
|
3.8.1
|
References 2
https://github.com/corazawaf/coraza/security/advisories/GHSA-w253-m66g-rx24
GitHub Security Advisory (GHSA-w253-m66g-rx24)
https://www.vulncheck.com/advisories/coraza-from-3.0.4-before-3.8.1-request-bod…
VulnCheck Advisory: Coraza from 3.0.4 before 3.8.1 Request Body Inspection Bypass via Content-Type