CVE-2021-41472: SQL injection vulnerability in Sourcecodester Simple Membership System v1 by oretnom23, allows attackers to ex

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-41472 is a critical-severity flaw (CVSS 9.8) affecting simple membership system using php and ajax. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in Sourcecodester Simple Membership System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username and password parameters.

Why this priority

Critical 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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 31%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-01-24
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: simple membership system using php and ajax project

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

Am I affected?

Timeline

2022-01-24 16:15 UTCPublished CVE record published
2026-06-17 04:08 UTCUpdated Record last modified

simple membership system using php and ajax project simple membership system using php and ajax 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-membership-system-using-php-and-ajax || rpm -q simple-membership-system-using-php-and-ajax || simple-membership-system-using-php-and-ajax --version

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

apt-cache madison simple-membership-system-using-php-and-ajax sudo apt install simple-membership-system-using-php-and-ajax=<VERSION_BEFORE_1.0> sudo apt-mark hold simple-membership-system-using-php-and-ajax

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

dnf --showduplicates list simple-membership-system-using-php-and-ajax sudo dnf downgrade simple-membership-system-using-php-and-ajax-<VERSION_BEFORE_1.0> sudo dnf versionlock add simple-membership-system-using-php-and-ajax

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-2021-41472?

simple membership system using php and ajax: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-41472 being exploited?

CVE-2021-41472 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-2021-41472 affect?

CVE-2021-41472 affects simple membership system using php and ajax. Severity is critical (CVSS 9.8). SQL injection vulnerability in Sourcecodester Simple Membership System v1 by oretnom23, allows attackers to execute arbitrary SQL commands via the username and password parameters.

How urgent is CVE-2021-41472?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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