CVE-2006-6422: Agileco AgileBill 1.4.x and AgileVoice 1.4.x do not properly handle certain proxy requests, which allows remot

Routine

MEDIUM 5.0DOWNGRADEDOWNGRADE

CVE-2006-6422 is a medium-severity flaw (CVSS 5.0) affecting agilebill, agilevoice. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Agileco AgileBill 1.4.x and AgileVoice 1.4.x do not properly handle certain proxy requests, which allows remote attackers to disable the application by entering invalid license data on a form, possibly involving modules/core/license.inc.php. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2006-12-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: agileco

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

Am I affected?

Timeline

2006-12-10 11:28 UTCPublished CVE record published
2026-06-16 22:33 UTCUpdated Record last modified

agileco agilebill DOWNGRADE

Affected: 1.4 · 1.4.92 · 1.4.93

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.4 (Debian / Ubuntu)

apt-cache madison agilebill sudo apt install agilebill=<VERSION_BEFORE_1.4> sudo apt-mark hold agilebill

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

dnf --showduplicates list agilebill sudo dnf downgrade agilebill-<VERSION_BEFORE_1.4> sudo dnf versionlock add agilebill

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.

agileco agilevoice DOWNGRADE

Affected: 1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.4 (Debian / Ubuntu)

apt-cache madison agilevoice sudo apt install agilevoice=<VERSION_BEFORE_1.4> sudo apt-mark hold agilevoice

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

dnf --showduplicates list agilevoice sudo dnf downgrade agilevoice-<VERSION_BEFORE_1.4> sudo dnf versionlock add agilevoice

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-2006-6422?

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

Is CVE-2006-6422 being exploited?

CVE-2006-6422 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-2006-6422 affect?

CVE-2006-6422 affects agilebill, agilevoice. Severity is medium (CVSS 5.0). Agileco AgileBill 1.4.x and AgileVoice 1.4.x do not properly handle certain proxy requests, which allows remote attackers to disable the application by entering invalid license data on a form, possibly involving modules/core/license.inc.php

How urgent is CVE-2006-6422?

Priority 36/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2005-3827 HIGH 7.5 UPGRADE SQL injection vulnerability in product_cat in AgileBill 1.4.92 and earlier allows remote attackers to execute

References

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