What is CVE-2020-35346?

CVE-2020-35346 is a medium-severity vulnerability in Cxuu Cxuucms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-12-26.

How severe is CVE-2020-35346?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Cxuu Cxuucms

CVE-2020-35346

CXUUCMS V3 3.1 is affected by a reflected XSS vulnerability that allows remote attackers to inject arbitrary web script or HTML via the imgurl parameter of admin.php?c=content&a=add.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-12-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Cxuu Cxuucms — versions 3.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/cbkhwx/cxuucmsv3/issues/4 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-35346?: CVE-2020-35346 is a medium-severity vulnerability in Cxuu Cxuucms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-12-26.
How severe is CVE-2020-35346?: Medium severity. CVSS v3 base score is 4.8 out of 10.