CVE-2006-2143: Multiple cross-site scripting (XSS) vulnerabilities in TextFileBB 1.0.16 allow remote attackers to inject arbi

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MEDIUM 4.3DOWNGRADE

CVE-2006-2143 is a medium-severity flaw (CVSS 4.3) affecting textfilebb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in TextFileBB 1.0.16 allow remote attackers to inject arbitrary web script or HTML via Javascript events such as "onmouseover" in the (1) color, (2) size, or (3) url bbcode tags.

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	2.0% (top 20%)
CISA exploited list	No
Published	2006-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: jcink

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

Am I affected?

Timeline

2006-05-02 10:02 UTCPublished CVE record published
2026-06-16 22:24 UTCUpdated Record last modified

jcink textfilebb DOWNGRADE

Affected: 1.0.16

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.16

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.16 (Debian / Ubuntu)

apt-cache madison textfilebb sudo apt install textfilebb=<VERSION_BEFORE_1.0.16> sudo apt-mark hold textfilebb

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

dnf --showduplicates list textfilebb sudo dnf downgrade textfilebb-<VERSION_BEFORE_1.0.16> sudo dnf versionlock add textfilebb

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: TextFileBB 1.0.16 - Multiple Tag Script Injection Vulnerabilities

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-2006-2143?

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

Is CVE-2006-2143 being exploited?

CVE-2006-2143 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-2006-2143 affect?

CVE-2006-2143 affects textfilebb. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in TextFileBB 1.0.16 allow remote attackers to inject arbitrary web script or HTML via Javascript events such as "onmouseover" in the (1) color, (2) size, or (3) url bbcode tags.

How urgent is CVE-2006-2143?

Priority 40/100. Public exploit reference

Related CVEs

CVE-2006-1202 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in textfileBB 1.0 and earlier allow remote attackers to in

References

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