CVE-2021-23258

Name: CVE-2021-23258
Creator: NVD / NIST
Published: 2021-12-02T16:15:07.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.70%

Last modified Jun 17, 2026

CVE-2021-23258 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Authenticated users with Administrator or Developer roles may execute OS commands by SPEL Expression in Spring beans. SPEL Expression does not have security restrictions, which will cause attackers to execute arbitrary commands remotely (RCE).. EPSS estimates a 0.70% chance of exploitation in the next 30 days.

Description

Authenticated users with Administrator or Developer roles may execute OS commands by SPEL Expression in Spring beans. SPEL Expression does not have security restrictions, which will cause attackers to execute arbitrary commands remotely (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

0.70%

48.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Craftercms	Crafter Cms	>= 3.1.0, < 3.1.12

References

https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120101Vendor Advisory
https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120101Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-23258?

How severe is CVE-2021-23258?

CVE-2021-23258 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23258?

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-2021-23258?

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

Scan your code now

Source: NVD / NIST