What is CVE-2021-31402?

CVE-2021-31402 is a high-severity vulnerability in Flutterchina Dio, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.5/10. Published 2021-04-15.

How severe is CVE-2021-31402?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-31402 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Flutterchina Dio

CVE-2021-31402

The dio package 4.0.0 for Dart allows CRLF injection if the attacker controls the HTTP method string, a different vulnerability than CVE-2020-35669.

EPSS: 0.012 (63.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Flutterchina Dio
N/a — versions n/a

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

Public proof-of-concept exploits

leoambrus/artefactswithoutCVEonGitHubAdvisoryDatabase

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-31402?: CVE-2021-31402 is a high-severity vulnerability in Flutterchina Dio, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.5/10. Published 2021-04-15.
How severe is CVE-2021-31402?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-31402 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.