What is CVE-2020-23691?

CVE-2020-23691 is a critical-severity vulnerability in Yfcmf. CVSS score: 9.8/10. Published 2021-05-14.

How severe is CVE-2020-23691?

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

Vulnerability in Yfcmf

CVE-2020-23691

YFCMF v2.3.1 has a Remote Command Execution (RCE) vulnerability in the index.php.

Published 2021-05-14 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.034 (88.4th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000

Affected products

Yfcmf — versions 2.3.1

References

github.com/lxw1844912514/YFCMF/issues/1 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-23691?: CVE-2020-23691 is a critical-severity vulnerability in Yfcmf. CVSS score: 9.8/10. Published 2021-05-14.
How severe is CVE-2020-23691?: Critical severity. CVSS v3 base score is 9.8 out of 10.