What is CVE-2024-46331?

CVE-2024-46331 is a high-severity vulnerability in Modstart Mostartcms, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 7.2/10. Published 2024-09-27.

How severe is CVE-2024-46331?

High severity. CVSS v3 base score is 7.2 out of 10.

Open Redirect in Modstart Mostartcms

CVE-2024-46331

ModStartCMS v8.8.0 was discovered to contain an open redirect vulnerability in the redirect parameter at /admin/login. This vulnerability allows attackers to redirect users to an arbitrary website via a crafted URL.

Vulnerability class: Open Redirect

Published 2024-09-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Modstart Mostartcms — versions 8.8.0

Weakness classification (CWE)

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

References

github.com/whiteshark2k/ModStartCMS-OpenRedirect/blob/main/ModStartCMS-OpenRedi… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-46331?: CVE-2024-46331 is a high-severity vulnerability in Modstart Mostartcms, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 7.2/10. Published 2024-09-27.
How severe is CVE-2024-46331?: High severity. CVSS v3 base score is 7.2 out of 10.