CVE-2025-5639: A vulnerability was found in PHPGurukul Notice Board System 1.0 and classified as critical

This week

HIGH 7.3REMOTEDOWNGRADE

CVE-2025-5639 is a high-severity flaw (CVSS 7.3) affecting notice board system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in PHPGurukul Notice Board System 1.0 and classified as critical. Affected by this issue is some unknown functionality of the file /forgot-password.php. The manipulation of the argument email leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-74, CWE-89
Published	2025-06-05
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: phpgurukul

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

Am I affected?

Timeline

2025-06-05 06:15 UTCPublished CVE record published
2026-06-17 09:48 UTCUpdated Record last modified

phpgurukul notice board 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 notice-board-system || rpm -q notice-board-system || notice-board-system --version

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

apt-cache madison notice-board-system sudo apt install notice-board-system=<VERSION_BEFORE_1.0> sudo apt-mark hold notice-board-system

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

dnf --showduplicates list notice-board-system sudo dnf downgrade notice-board-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add notice-board-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-2025-5639?

notice board system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-5639 being exploited?

CVE-2025-5639 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-2025-5639 affect?

CVE-2025-5639 affects notice board system. Severity is high (CVSS 7.3). A vulnerability was found in PHPGurukul Notice Board System 1.0 and classified as critical. Affected by this issue is some unknown functionality of the file /forgot-password.php. The manipulation of the argument email leads to sql injection

How urgent is CVE-2025-5639?

Priority 47/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-6301 LOW 2.4 DOWNGRADE A vulnerability, which was classified as problematic, has been found in PHPGurukul Notice Board System 1.0
CVE-2025-5638 MEDIUM 6.3 DOWNGRADE A vulnerability has been found in PHPGurukul Notice Board System 1.0 and classified as critical
CVE-2025-4906 HIGH 7.3 DOWNGRADE A vulnerability was found in PHPGurukul Notice Board System 1.0
CVE-2025-4060 HIGH 7.3 DOWNGRADE A vulnerability, which was classified as critical, has been found in PHPGurukul Notice Board System 1.0

References

← Back to latest CVEs