9.8

CVE-2021-42342: embedthis goahead

CVSS: 9.8v3.1CriticalModified
Published 14-10-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-42342 is a critical (CVSS 9.8) vulnerability in embedthis goahead. EPSS estimates a 59.46% chance of exploitation in the next 30 days, higher than 99.1% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
59.46%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-10-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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

2 scores · 1 source · 2 versions

EPSS trend

Probability

59.46%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

0.00 pp

From 59.46% on 19-09-2026

19-09-202619-10-2026
EPSS score
59.46%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Embedthis1 product
  • goahead≥ 4.0.0, ≤ 4.1.3 | ≥ 5.0.0, < 5.1.5

1 vendor · 1 product

References

1 links