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

Routine

MEDIUM 4.6WATCHLISTDOWNGRADE

CVE-2025-63442 is a medium-severity flaw (CVSS 4.6) affecting simple-user-management-system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Simple User Management System with PHP-MySQL v1.0 is vulnerable to Cross-Site Scripting (XSS) via the Profile Section. The system fails to properly sanitize user input, allowing attackers to inject and execute arbitrary JavaScript when the input is displayed in the browser

Why this priority

Public exploit reference
On your watchlist

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

Risk facts

CVSS score	4.6 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-11-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: nababur

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

Am I affected?

Timeline

2025-11-03 15:15 UTCPublished CVE record published
2026-06-17 09:53 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-2025-63442?

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

Is CVE-2025-63442 being exploited?

CVE-2025-63442 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-2025-63442 affect?

CVE-2025-63442 affects simple-user-management-system. Severity is medium (CVSS 4.6). Simple User Management System with PHP-MySQL v1.0 is vulnerable to Cross-Site Scripting (XSS) via the Profile Section. The system fails to properly sanitize user input, allowing attackers to inject and execute arbitrary JavaScript when the

How urgent is CVE-2025-63442?

Priority 29/100. Public exploit reference; On your watchlist

Software pages

PHP vulnerabilities · MySQL vulnerabilities

Related CVEs

CVE-2025-3489 MEDIUM 4.3 DOWNGRADE A vulnerability was found in Nababur Simple-User-Management-System 1.0

References

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