CVE-2021-45406: In SalonERP 3.0.1, a SQL injection vulnerability allows an attacker to inject payload using 'sql' parameter in

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HIGH 8.8DOWNGRADE

CVE-2021-45406 is a high-severity flaw (CVSS 8.8) affecting salonerp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In SalonERP 3.0.1, a SQL injection vulnerability allows an attacker to inject payload using 'sql' parameter in SQL query while generating a report. Upon successfully discovering the login admin password hash, it can be decrypted to obtain the plain-text password.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-01-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: salonerp project

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

Am I affected?

Timeline

2022-01-14 20:15 UTCPublished CVE record published
2026-06-17 04:13 UTCUpdated Record last modified

salonerp project salonerp DOWNGRADE

Affected: 3.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.1

1. Check installed version

apt-cache policy salonerp || rpm -q salonerp || salonerp --version

2. No fixed release: DOWNGRADE to a release before 3.0.1 (Debian / Ubuntu)

apt-cache madison salonerp sudo apt install salonerp=<VERSION_BEFORE_3.0.1> sudo apt-mark hold salonerp

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

dnf --showduplicates list salonerp sudo dnf downgrade salonerp-<VERSION_BEFORE_3.0.1> sudo dnf versionlock add salonerp

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-2021-45406?

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

Is CVE-2021-45406 being exploited?

CVE-2021-45406 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-2021-45406 affect?

CVE-2021-45406 affects salonerp. Severity is high (CVSS 8.8). In SalonERP 3.0.1, a SQL injection vulnerability allows an attacker to inject payload using 'sql' parameter in SQL query while generating a report. Upon successfully discovering the login admin password hash, it can be decrypted to obtain t

How urgent is CVE-2021-45406?

Priority 55/100. High severity; Public exploit reference

Related CVEs

CVE-2022-42753 MEDIUM 6.1 DOWNGRADE SalonERP version 3.0.2 allows an external attacker to steal the cookie of arbitrary users

References

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