CVE-2021-42342 describes a critical vulnerability in GoAhead versions 4.x and 5.x prior to 5.1.5, where the file upload filter improperly handles user form variables. This flaw allows untrusted environment variables to be passed directly to CGI scripts, bypassing intended prefixes. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, its high EPSS and FAUCET Risk Score indicate a substantial potential for impact if exploited.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.0.0, <= 4.1.3CPE matchmatch criteria | cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:* | ||
>= 5.0.0, < 5.1.5CPE matchmatch criteria | cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.