What is CVE-2016-11020?

CVE-2016-11020 is a critical-severity vulnerability in Kunena, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-02-25.

How severe is CVE-2016-11020?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Kunena

CVE-2016-11020

Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.

Vulnerability class: Unrestricted File Upload

EPSS: 0.029 (85.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kunena
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2016-11020?: CVE-2016-11020 is a critical-severity vulnerability in Kunena, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-02-25.
How severe is CVE-2016-11020?: Critical severity. CVSS v3 base score is 9.8 out of 10.