CVE-2021-42342
CriticalIn the file upload filter, user form variables can be passed to CGI scripts without being prefixed with the CGI prefix.
Published Oct 14, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2021-42342 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Goahead (Embedthis).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 59% probability of exploitation in the next 30 days.
- Fixed versions are available, including Goahead <=4.1.3, Goahead 4.1.3.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
59%
Higher than 99.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2021-42342 brief as a PDF
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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 Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| GoaheadEmbedthis | See advisory | 4.1.3 |
Patched Releases
Goahead
<=4.1.3
Timeline
Publicly disclosed
Oct 14, 2021
Last updated
Nov 21, 2024
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
FAQ
Common Questions.
An issue was discovered in GoAhead 4.x and 5.x before 5.1.5.
Affected: Goahead (Embedthis). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Goahead <=4.1.3, Goahead 4.1.3.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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