CVE-2009-2036: SQL injection vulnerability in index.php in Open Biller 0.1 allows remote attackers to execute arbitrary SQL c

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HIGH 7.5DOWNGRADE

CVE-2009-2036 is a high-severity flaw (CVSS 7.5) affecting open biller. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in index.php in Open Biller 0.1 allows remote attackers to execute arbitrary SQL commands via the username parameter.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-89
Published	2009-06-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: geekbill

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-06-12 18:00 UTCPublished CVE record published
2026-06-16 23:08 UTCUpdated Record last modified

geekbill open biller DOWNGRADE

Affected: 0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1

1. Check installed version

apt-cache policy open-biller || rpm -q open-biller || open-biller --version

2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)

apt-cache madison open-biller sudo apt install open-biller=<VERSION_BEFORE_0.1> sudo apt-mark hold open-biller

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

dnf --showduplicates list open-biller sudo dnf downgrade open-biller-<VERSION_BEFORE_0.1> sudo dnf versionlock add open-biller

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: Open Biller 0.1 - 'Username' Blind 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-2009-2036?

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

Is CVE-2009-2036 being exploited?

CVE-2009-2036 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-2009-2036 affect?

CVE-2009-2036 affects open biller. Severity is high (CVSS 7.5). SQL injection vulnerability in index.php in Open Biller 0.1 allows remote attackers to execute arbitrary SQL commands via the username parameter.

How urgent is CVE-2009-2036?

Priority 47/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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