CVE-2023-22621

Name: CVE-2023-22621
Creator: NVD / NIST
Published: 2023-04-19T16:15:07.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 76.83%

Last modified Jun 17, 2026

CVE-2023-22621 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Strapi through 4.5.5 allows authenticated Server-Side Template Injection (SSTI) that can be exploited to execute arbitrary code on the server. A remote attacker with access to the Strapi admin panel can inject a crafted payload that executes code on the server into an email template that bypasses the validation checks that should prevent code execution.. EPSS estimates a 76.83% chance of exploitation in the next 30 days.

Description

Strapi through 4.5.5 allows authenticated Server-Side Template Injection (SSTI) that can be exploited to execute arbitrary code on the server. A remote attacker with access to the Strapi admin panel can inject a crafted payload that executes code on the server into an email template that bypasses the validation checks that should prevent code execution.

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

76.83%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Strapi	Strapi	>= 3.0.0, < 4.5.6

References

https://github.com/strapi/strapi/releasesRelease Notes
https://strapi.io/blog/security-disclosure-of-vulnerabilities-cveVendor Advisory
https://www.ghostccamm.com/blog/multi_strapi_vulns/Exploit, Third Party Advisory
https://github.com/strapi/strapi/releasesRelease Notes
https://strapi.io/blog/security-disclosure-of-vulnerabilities-cveVendor Advisory
https://www.ghostccamm.com/blog/multi_strapi_vulns/Exploit, Third Party Advisory

Timeline

Published: Apr 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22621?

How severe is CVE-2023-22621?

CVE-2023-22621 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 76.83% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22621?

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-2023-22621?

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

Scan your code now

Source: NVD / NIST