What is CVE-2023-39599?

CVE-2023-39599 is a medium-severity vulnerability in Cszcms Csz Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-08-22.

How severe is CVE-2023-39599?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Cszcms Csz Cms

CVE-2023-39599

Cross-Site Scripting (XSS) vulnerability in CSZ CMS v.1.3.0 allows attackers to execute arbitrary code via a crafted payload to the Social Settings parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-08-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Cszcms Csz Cms — versions 1.3.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/desencrypt/CVE/blob/main/CVE-2023-39599/Readme.md (Exploit, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Broken Link)

Frequently asked questions

What is CVE-2023-39599?: CVE-2023-39599 is a medium-severity vulnerability in Cszcms Csz Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-08-22.
How severe is CVE-2023-39599?: Medium severity. CVSS v3 base score is 5.4 out of 10.