CVE-2021-20721

9.8 criticalEPSS 1.5%

Critical (9.8) in kujirahand konawiki. EPSS 1.5% chance of exploitation in the next 30 days.

KonaWiki2 versions prior to 2.2.4 allows a remote attacker to upload arbitrary files via unspecified vectors. If the file contains PHP scripts, arbitrary code may be executed.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2021-05-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

kujirahand:konawiki

References

https://jvn.jp/en/jp/JVN34232719/index.html
https://kujirahand.com/konawiki/
https://jvn.jp/en/jp/JVN34232719/index.html
https://kujirahand.com/konawiki/

Check your stack JSON