CVE-2026-5333

Name: CVE-2026-5333
Creator: NVD / NIST
Published: 2026-04-02T14:16:36.827+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 2.67%

Last modified Jun 17, 2026

CVE-2026-5333 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A security flaw has been discovered in DefaultFuction Content-Management-System 1.0. This issue affects some unknown processing of the file /admin/tools.php. EPSS estimates a 2.67% chance of exploitation in the next 30 days.

Description

A security flaw has been discovered in DefaultFuction Content-Management-System 1.0. This issue affects some unknown processing of the file /admin/tools.php. The manipulation of the argument host results in command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

5.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

2.67%

83.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Defaultfuction	Content Management System	1.0

References

https://github.com/DefaultFuction/Content-Management-System/Product
https://github.com/DefaultFuction/Content-Management-System/issues/1Exploit, Vendor Advisory
https://github.com/DefaultFuction/Content-Management-System/issues/1#issue-4082558620Exploit, Vendor Advisory
https://vuldb.com/submit/780849Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354667Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354667/ctiPermissions Required, VDB Entry

Timeline

Published: Apr 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5333?

How severe is CVE-2026-5333?

CVE-2026-5333 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 2.67% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5333?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5333?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST