CVE-2022-21142

Name: CVE-2022-21142
Creator: NVD / NIST
Published: 2022-02-24T15:15:27.807+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.52%

Last modified Jun 17, 2026

CVE-2022-21142 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Authentication bypass vulnerability in a-blog cms Ver.2.8.x series versions prior to Ver.2.8.74, Ver.2.9.x series versions prior to Ver.2.9.39, Ver.2.10.x series versions prior to Ver.2.10.43, and Ver.2.11.x series versions prior to Ver.2.11.41 allows a remote unauthenticated attacker to bypass authentication under the specific condition.. EPSS estimates a 1.52% chance of exploitation in the next 30 days.

Description

Authentication bypass vulnerability in a-blog cms Ver.2.8.x series versions prior to Ver.2.8.74, Ver.2.9.x series versions prior to Ver.2.9.39, Ver.2.10.x series versions prior to Ver.2.10.43, and Ver.2.11.x series versions prior to Ver.2.11.41 allows a remote unauthenticated attacker to bypass authentication under the specific condition.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.52%

71.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Appleple	A-Blog Cms	>= 2.8.0, < 2.8.74
Appleple	A-Blog Cms	>= 2.9.0, < 2.9.39
Appleple	A-Blog Cms	>= 2.10.0, < 2.10.43
Appleple	A-Blog Cms	>= 2.11.0, < 2.11.41

References

https://developer.a-blogcms.jp/blog/news/security-202202.htmlVendor Advisory
https://jvn.jp/en/jp/JVN14706307/index.htmlThird Party Advisory
https://developer.a-blogcms.jp/blog/news/security-202202.htmlVendor Advisory
https://jvn.jp/en/jp/JVN14706307/index.htmlThird Party Advisory

Timeline

Published: Feb 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-21142?

How severe is CVE-2022-21142?

CVE-2022-21142 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.

How do I fix CVE-2022-21142?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-21142?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST