What is CVE-2020-23359?

CVE-2020-23359 is a critical-severity vulnerability in Webidsupport Webid, classified under Incorrect Comparison. CVSS score: 9.8/10. Published 2021-01-27.

How severe is CVE-2020-23359?

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

Vulnerability in Webidsupport Webid

CVE-2020-23359

WeBid 1.2.2 admin/newuser.php has an issue with password rechecking during registration because it uses a loose comparison to check the identicalness of two passwords. Two non-identical passwords can still bypass the check.

Published 2021-01-27 · 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: 0.012 (68.7th percentile), scored 2026-10-31.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: +0.000

Affected products

Webidsupport Webid — versions 1.2.2

Weakness classification (CWE)

CWE-697 — Incorrect Comparison

References

github.com/renlok/WeBid/issues/530 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-23359?: CVE-2020-23359 is a critical-severity vulnerability in Webidsupport Webid, classified under Incorrect Comparison. CVSS score: 9.8/10. Published 2021-01-27.
How severe is CVE-2020-23359?: Critical severity. CVSS v3 base score is 9.8 out of 10.