CVE-2026-30457Public exploitNetwork attack vector

Authenticated code execution via Dwoo backslash escape

Published Mar 26, 2026 · Updated Mar 26, 2026

Code injection in Daylight Studio FuelCMS 1.5.2 allows remote authenticated users to execute arbitrary PHP via block preview data. The Dwoo parser fails to escape backslashes in assign expressions, so crafted input breaks out of generated PHP strings before Core.php includes the compiled template. Any valid application role can reach the block preview endpoint, and injected code runs with the web server process's privileges.

CVSS severity9.8
Critical
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in Daylight Studio FuelCMS 1.5.2 allows remote authenticated users to execute arbitrary PHP via block preview data. The Dwoo parser fails to escape backslashes in assign expressions, so crafted input breaks out of generated PHP strings before Core.php includes the compiled template. Any valid application role can reach the block preview endpoint, and injected code runs with the web server process's privileges.

The record

CVE
CVE-2026-30457
Published
Mar 26, 2026
Updated
Mar 26, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8Pentest-Tools.comCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo