What is CVE-2026-30458?

CVE-2026-30458 is a critical-severity vulnerability in Thedaylightstudio Fuel Cms, classified under CWE-620. CVSS score: 9.1/10. Published 2026-03-26.

How severe is CVE-2026-30458?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Thedaylightstudio Fuel Cms

CVE-2026-30458

An issue in Daylight Studio FuelCMS v1.5.2 allows attackers to exfiltrate users' password reset tokens via a mail splitting attack.

Published 2026-03-26 · last modified 2026-07-05.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (35.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.7% 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: +0.001

Affected products

Thedaylightstudio Fuel Cms — versions 1.5.2

Weakness classification (CWE)

CWE-620

References

github.com/daylightstudio/FUEL-CMS (Product)
daylight.com (Not Applicable)
fuelcms.com (Product)
pentest-tools.com/PTT-2025-025-Account-Takeover-via-Email-Array.pdf (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-30458?: CVE-2026-30458 is a critical-severity vulnerability in Thedaylightstudio Fuel Cms, classified under CWE-620. CVSS score: 9.1/10. Published 2026-03-26.
How severe is CVE-2026-30458?: Critical severity. CVSS v3 base score is 9.1 out of 10.