CVE-2008-2066: Cross-site scripting (XSS) vulnerability in bb_admin.php in miniBB 2.2a allows remote attackers to inject arbi

Routine

MEDIUM 4.3DOWNGRADE

CVE-2008-2066 is a medium-severity flaw (CVSS 4.3) affecting minibb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in bb_admin.php in miniBB 2.2a allows remote attackers to inject arbitrary web script or HTML via the whatus parameter in a searchusers2 action. NOTE: it was later reported that other versions before 3.0.1 are also vulnerable.

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	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2008-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: minibb

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

Am I affected?

Timeline

2008-05-02 23:20 UTCPublished CVE record published
2026-06-16 22:53 UTCUpdated Record last modified

minibb minibb DOWNGRADE

Affected: 2.2a

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2a

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2a (Debian / Ubuntu)

apt-cache madison minibb sudo apt install minibb=<VERSION_BEFORE_2.2a> sudo apt-mark hold minibb

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

dnf --showduplicates list minibb sudo dnf downgrade minibb-<VERSION_BEFORE_2.2a> sudo dnf versionlock add minibb

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-2008-2066?

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

Is CVE-2008-2066 being exploited?

CVE-2008-2066 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-2008-2066 affect?

CVE-2008-2066 affects minibb. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in bb_admin.php in miniBB 2.2a allows remote attackers to inject arbitrary web script or HTML via the whatus parameter in a searchusers2 action. NOTE: it was later reported that other versions befor

How urgent is CVE-2008-2066?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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