What is CVE-2020-21658?

CVE-2020-21658 is a medium-severity vulnerability in Wdja Cms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-10-06.

How severe is CVE-2020-21658?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2020-21658 known to be exploited?

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

CSRF in Wdja Cms

CVE-2020-21658

A Cross-Site Request Forgery (CSRF) in WDJA CMS v1.5.2 allows attackers to arbitrarily add administrator accounts via a crafted URL.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Wdja Cms — versions 1.5.2

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

github.com/shadoweb/wdja/issues/10 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-21658?: CVE-2020-21658 is a medium-severity vulnerability in Wdja Cms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-10-06.
How severe is CVE-2020-21658?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2020-21658 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.