What is CVE-2023-45909?

CVE-2023-45909 is a medium-severity vulnerability in Zzzcms Zzzphp, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2023-10-18.

How severe is CVE-2023-45909?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Zzzcms Zzzphp

CVE-2023-45909

zzzcms v2.2.0 was discovered to contain an open redirect vulnerability.

Vulnerability class: Open Redirect

Published 2023-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (18.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Zzzcms Zzzphp — versions 2.2.0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

github.com/Num-Nine/CVE/issues/7 (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2023-45909?: CVE-2023-45909 is a medium-severity vulnerability in Zzzcms Zzzphp, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2023-10-18.
How severe is CVE-2023-45909?: Medium severity. CVSS v3 base score is 6.1 out of 10.