What is CVE-2020-25391?

CVE-2020-25391 is a medium-severity vulnerability in Cszcms Csz Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-09.

How severe is CVE-2020-25391?

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

XSS in Cszcms Csz Cms

CVE-2020-25391

A cross site scripting vulnerability in CSZ CMS 1.2.9 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the 'New Pages' field under the 'Pages Content' module.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-09 · 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: 0.004 (36.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cszcms Csz Cms — versions 1.2.9

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

sourceforge.net/p/cszcms/tickets/1/ (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-25391?: CVE-2020-25391 is a medium-severity vulnerability in Cszcms Csz Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-09.
How severe is CVE-2020-25391?: Medium severity. CVSS v3 base score is 5.4 out of 10.