CVE-2021-42342
CRITICAL
9.8
CVSS Score
Published: October 14, 2021 at 05:08 AM UTC
Updated: June 17, 2026 at 04:09 AM UTC
1 product affected across 1 vendorGoAhead
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Severity
CRITICAL9.8
Exploit prediction
EPSS 59%
Description
An issue was discovered in GoAhead 4.x and 5.x before 5.1.5. In the file upload filter, user form variables can be passed to CGI scripts without being prefixed with the CGI prefix. This permits tunneling untrusted environment variables into vulnerable CGI scripts.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
4.0.0 ≤ v ≤ 4.1.35.0.0 ≤ v < 5.1.5
Affected range stops below 5.1.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/embedthis/goahead/issues/305CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-434
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