What is CVE-2022-0424?

CVE-2022-0424 is a medium-severity vulnerability in Supsystic Popup, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2022-05-09.

How severe is CVE-2022-0424?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2022-0424 known to be exploited?

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

Auth bypass in Supsystic Popup

CVE-2022-0424

The Popup by Supsystic WordPress plugin before 1.10.9 does not have any authentication and authorisation in an AJAX action, allowing unauthenticated attackers to call it and get the email addresses of subscribed users

Vulnerability class: Broken Authentication

Published 2022-05-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.028 (86.5th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.028 · change: -0.002

Affected products

Supsystic Popup
Popup By Supsystic — versions 1.10.9

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

References

wpscan.com/vulnerability/1e4593fd-51e5-43ca-a244-9aaef3804b9f (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-0424?: CVE-2022-0424 is a medium-severity vulnerability in Supsystic Popup, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2022-05-09.
How severe is CVE-2022-0424?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2022-0424 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.