CVE-2006-0407: Cross-site scripting (XSS) vulnerability in post.php in AZ Bulletin Board (AZbb) 1.1.00 and earlier allows rem

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MEDIUM 4.3DOWNGRADE

CVE-2006-0407 is a medium-severity flaw (CVSS 4.3) affecting az bulletin board. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in post.php in AZ Bulletin Board (AZbb) 1.1.00 and earlier allows remote attackers to inject arbitrary web script or HTML via the (1) nickname parameter and (2) an iframe tag in the topic parameter. NOTE: the original disclosure specified the name parameter, but a correction was later provided. NOTE: followup posts have both disputed and confirmed the original claim.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Published	2006-01-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: azbb

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

Am I affected?

Timeline

2006-01-25 02:03 UTCPublished CVE record published
2026-06-16 22:20 UTCUpdated Record last modified

azbb az bulletin board DOWNGRADE

Affected: 1.0.0 · 1.0.0rc1 · 1.0.0rc2 · 1.0.1 · 1.0.2 · 1.0.3 · 1.0.4 · 1.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy az-bulletin-board || rpm -q az-bulletin-board || az-bulletin-board --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison az-bulletin-board sudo apt install az-bulletin-board=<VERSION_BEFORE_1.0.0> sudo apt-mark hold az-bulletin-board

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

dnf --showduplicates list az-bulletin-board sudo dnf downgrade az-bulletin-board-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add az-bulletin-board

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: AZ Bulletin Board 1.0.x/1.1 - 'post.php' HTML 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-2006-0407?

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

Is CVE-2006-0407 being exploited?

CVE-2006-0407 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-2006-0407 affect?

CVE-2006-0407 affects az bulletin board. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in post.php in AZ Bulletin Board (AZbb) 1.1.00 and earlier allows remote attackers to inject arbitrary web script or HTML via the (1) nickname parameter and (2) an iframe tag in the topic parameter.

How urgent is CVE-2006-0407?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2005-1200 HIGH 7.5 DOWNGRADE PHP remote file inclusion vulnerability in main_index.php in AZ Bulletin Board (AZbb) 1.0.07a through 1.0.07c

References

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