What is CVE-2026-30457?

CVE-2026-30457 is a critical-severity vulnerability in Thedaylightstudio Dwoo, classified under Code Injection. CVSS score: 9.8/10. Published 2026-03-26.

How severe is CVE-2026-30457?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Thedaylightstudio Dwoo

CVE-2026-30457

An issue in the /parser/dwoo component of Daylight Studio FuelCMS v1.5.2 allows attackers to execute arbitrary code via crafted PHP code.

Vulnerability class: RCE (Remote Code Execution)

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

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% 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: 0.008 · change: +0.001

Affected products

Thedaylightstudio Dwoo — versions 1.1.0
Thedaylightstudio Fuel Cms — versions 1.5.2

Weakness classification (CWE)

CWE-94 — Code Injection

References

daylight.com (Not Applicable)
fuelcms.com (Product)
github.com/daylightstudio/FUEL-CMS/tree/master/fuel/modules/fuel/libraries/pars… (Product)
pentest-tools.com/PTT-2025-026-PHP-Code-Execution-Via-Dwoo-Escape.pdf (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-30457?: CVE-2026-30457 is a critical-severity vulnerability in Thedaylightstudio Dwoo, classified under Code Injection. CVSS score: 9.8/10. Published 2026-03-26.
How severe is CVE-2026-30457?: Critical severity. CVSS v3 base score is 9.8 out of 10.