CVE-2021-23262

Name: CVE-2021-23262
Creator: NVD / NIST
Published: 2021-12-02T16:15:07.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2021-23262 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Authenticated administrators may modify the main YAML configuration file and load a Java class resulting in RCE.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

Authenticated administrators may modify the main YAML configuration file and load a Java class resulting in RCE.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

0.62%

45.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Craftercms	Crafter Cms	>= 3.1.0, < 3.1.13

References

https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120105Vendor Advisory
https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120105Vendor Advisory

Timeline

Published: Dec 2, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23262?

Authenticated administrators may modify the main YAML configuration file and load a Java class resulting in RCE.

How severe is CVE-2021-23262?

CVE-2021-23262 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23262?

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-2021-23262?

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

Scan your code now

Source: NVD / NIST