CVE-2025-3489: A vulnerability was found in Nababur Simple-User-Management-System 1.0

Routine

MEDIUM 4.3DOWNGRADE

CVE-2025-3489 is a medium-severity flaw (CVSS 4.3) affecting simple-user-management-system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Nababur Simple-User-Management-System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /register.php. The manipulation of the argument name/username leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well. The vendor was contacted early about this d

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2025-04-10
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: nababur

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-10 04:15 UTCPublished CVE record published
2026-06-17 09:20 UTCUpdated Record last modified

nababur simple-user-management-system DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy simple-user-management-system || rpm -q simple-user-management-system || simple-user-management-system --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison simple-user-management-system sudo apt install simple-user-management-system=<VERSION_BEFORE_1.0> sudo apt-mark hold simple-user-management-system

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list simple-user-management-system sudo dnf downgrade simple-user-management-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add simple-user-management-system

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-3489?

simple-user-management-system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-3489 being exploited?

CVE-2025-3489 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-3489 affect?

CVE-2025-3489 affects simple-user-management-system. Severity is medium (CVSS 4.3). A vulnerability was found in Nababur Simple-User-Management-System 1.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /register.php. The manipulation of the argument name/username leads t

How urgent is CVE-2025-3489?

Priority 31/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-63442 MEDIUM 4.6 DOWNGRADE Simple User Management System with PHP-MySQL v1.0 is vulnerable to Cross-Site Scripting (XSS) via the Profile

References

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