CVE-2021-27828: SQL injection in In4Suite ERP 3.2.74.1370 allows attackers to modify or delete data, causing persistent change

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CRITICAL 9.1REMOTEDOWNGRADE

CVE-2021-27828 is a critical-severity flaw (CVSS 9.1) affecting in4suite erp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection in In4Suite ERP 3.2.74.1370 allows attackers to modify or delete data, causing persistent changes to the application's content or behavior by using malicious SQL queries.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
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	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	20.3% (top 3%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-06-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: in4velocity

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

Am I affected?

Timeline

2021-06-01 12:15 UTCPublished CVE record published
2026-06-17 03:45 UTCUpdated Record last modified

in4velocity in4suite erp DOWNGRADE

Affected: 3.2.74.1370

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.74.1370

1. Check installed version

apt-cache policy in4suite-erp || rpm -q in4suite-erp || in4suite-erp --version

2. No fixed release: DOWNGRADE to a release before 3.2.74.1370 (Debian / Ubuntu)

apt-cache madison in4suite-erp sudo apt install in4suite-erp=<VERSION_BEFORE_3.2.74.1370> sudo apt-mark hold in4suite-erp

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

dnf --showduplicates list in4suite-erp sudo dnf downgrade in4suite-erp-<VERSION_BEFORE_3.2.74.1370> sudo dnf versionlock add in4suite-erp

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: In4Suit ERP 3.2.74.1370 - 'txtLoginId' SQL injection

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-2021-27828?

in4suite erp: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-27828 being exploited?

CVE-2021-27828 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-2021-27828 affect?

CVE-2021-27828 affects in4suite erp. Severity is critical (CVSS 9.1). SQL injection in In4Suite ERP 3.2.74.1370 allows attackers to modify or delete data, causing persistent changes to the application's content or behavior by using malicious SQL queries.

How urgent is CVE-2021-27828?

Priority 66/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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