CVE-2022-27991: Online Banking System in PHP v1 was discovered to contain multiple SQL injection vulnerabilities at /staff_log

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MEDIUM 6.5DOWNGRADE

CVE-2022-27991 is a medium-severity flaw (CVSS 6.5) affecting online banking system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Online Banking System in PHP v1 was discovered to contain multiple SQL injection vulnerabilities at /staff_login.php via the Staff ID and Staff Password parameters.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-89
Published	2022-04-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: online banking system project

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

Am I affected?

Timeline

2022-04-08 09:15 UTCPublished CVE record published
2026-06-17 04:37 UTCUpdated Record last modified

online banking system project online banking 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 online-banking-system || rpm -q online-banking-system || online-banking-system --version

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

apt-cache madison online-banking-system sudo apt install online-banking-system=<VERSION_BEFORE_1.0> sudo apt-mark hold online-banking-system

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

dnf --showduplicates list online-banking-system sudo dnf downgrade online-banking-system-<VERSION_BEFORE_1.0> sudo dnf versionlock add online-banking-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-2022-27991?

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

Is CVE-2022-27991 being exploited?

CVE-2022-27991 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-2022-27991 affect?

CVE-2022-27991 affects online banking system. Severity is medium (CVSS 6.5). Online Banking System in PHP v1 was discovered to contain multiple SQL injection vulnerabilities at /staff_login.php via the Staff ID and Staff Password parameters.

How urgent is CVE-2022-27991?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-40122 CRITICAL 9.8 DOWNGRADE Online Banking System v1.0 was discovered to contain a SQL injection vulnerability via the cust_id parameter a
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CVE-2022-40118 CRITICAL 9.8 DOWNGRADE Online Banking System v1.0 was discovered to contain a SQL injection vulnerability via the cust_id parameter a

References

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