CVE-2002-2056: Cross-site scripting (XSS) vulnerability in TeeKai Forum 1.2 allows remote attackers to inject arbitrary web s

Routine

MEDIUM 4.3DOWNGRADE

CVE-2002-2056 is a medium-severity flaw (CVSS 4.3) affecting teekai forum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in TeeKai Forum 1.2 allows remote attackers to inject arbitrary web script or HTML via the valid_username_online cookie.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: teekai

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

teekai teekai forum DOWNGRADE

Affected: 1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy teekai-forum || rpm -q teekai-forum || teekai-forum --version

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison teekai-forum sudo apt install teekai-forum=<VERSION_BEFORE_1.2> sudo apt-mark hold teekai-forum

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

dnf --showduplicates list teekai-forum sudo dnf downgrade teekai-forum-<VERSION_BEFORE_1.2> sudo dnf versionlock add teekai-forum

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-2002-2056?

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

Is CVE-2002-2056 being exploited?

CVE-2002-2056 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-2002-2056 affect?

CVE-2002-2056 affects teekai forum. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in TeeKai Forum 1.2 allows remote attackers to inject arbitrary web script or HTML via the valid_username_online cookie.

How urgent is CVE-2002-2056?

Priority 30/100. No elevated risk signals yet.

Related CVEs

CVE-2002-2057 MEDIUM 5.0 DOWNGRADE TeeKai Forum 1.2 uses weak encryption of web usage statistics in data/member_log.txt, which is stored under th
CVE-2002-2054 HIGH 7.5 DOWNGRADE TeeKai Forum 1.2 allows remote attackers to authenticate as the administrator and and gain privileged web foru

References

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