Is CVE-2021-42342 actively exploited?

CVE-2021-42342 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-42342?

CVE-2021-42342 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-42342?

Patch guidance is available from embedthis security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-42342.

Which products are affected by CVE-2021-42342?

2 products: embedthis goahead, embedthis goahead.

Fix CVE-2021-42342 - CRITICAL embedthis goahead

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-434 · Unrestricted File Upload

Metadata

Primary Vendor: EMBEDTHIS
Published: 10/14/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-42342

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary