CVE-2023-43340

Name: CVE-2023-43340
Creator: NVD / NIST
Published: 2023-10-19T23:15:08.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.2/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2023-43340 is a medium-severity vulnerability rated 5.2/10 on the CVSS scale. Cross-site scripting (XSS) vulnerability in evolution v.3.2.3 allows a local attacker to execute arbitrary code via a crafted payload injected into the cmsadmin, cmsadminemail, cmspassword and cmspasswordconfim parameters. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

Cross-site scripting (XSS) vulnerability in evolution v.3.2.3 allows a local attacker to execute arbitrary code via a crafted payload injected into the cmsadmin, cmsadminemail, cmspassword and cmspasswordconfim parameters

Metrics

CVSS 3.1

5.2/10

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

EPSS Probability

0.47%

37.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Evo	Evolution Cms	3.2.3

References

https://github.com/sromanhu/-CVE-2023-43340-Evolution-Reflected-XSS---Installation-Admin-OptionsExploit, Third Party Advisory
https://github.com/sromanhu/Evolution-Reflected-XSS---Installation-Admin-OptionsExploit, Third Party Advisory
https://github.com/sromanhu/-CVE-2023-43340-Evolution-Reflected-XSS---Installation-Admin-OptionsExploit, Third Party Advisory
https://github.com/sromanhu/Evolution-Reflected-XSS---Installation-Admin-OptionsExploit, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2023-43340?

How severe is CVE-2023-43340?

CVE-2023-43340 has a CVSS score of 5.2/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43340?

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-2023-43340?

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

Scan your code now

Source: NVD / NIST