CVE-2004-2208: CRLF injection vulnerability in Ideal Science IdealBB 1.4.9 through 1.5.3 allows remote attackers to conduct H

Routine

MEDIUM 5.0DOWNGRADE

CVE-2004-2208 is a medium-severity flaw (CVSS 5.0) affecting idealbb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CRLF injection vulnerability in Ideal Science IdealBB 1.4.9 through 1.5.3 allows remote attackers to conduct HTTP response splitting attacks via unknown vectors.

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	1.3% (top 29%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ideal science

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:09 UTCUpdated Record last modified

ideal science idealbb DOWNGRADE

Affected: 1.4.9 · 1.4.9_beta · 1.4.9a · 1.5.1 · 1.5.2 · 1.5.2a · 1.5.2c · 1.5.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.9

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.4.9 (Debian / Ubuntu)

apt-cache madison idealbb sudo apt install idealbb=<VERSION_BEFORE_1.4.9> sudo apt-mark hold idealbb

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

dnf --showduplicates list idealbb sudo dnf downgrade idealbb-<VERSION_BEFORE_1.4.9> sudo dnf versionlock add idealbb

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-2004-2208?

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

Is CVE-2004-2208 being exploited?

CVE-2004-2208 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-2004-2208 affect?

CVE-2004-2208 affects idealbb. Severity is medium (CVSS 5.0). CRLF injection vulnerability in Ideal Science IdealBB 1.4.9 through 1.5.3 allows remote attackers to conduct HTTP response splitting attacks via unknown vectors.

How urgent is CVE-2004-2208?

Priority 35/100. No elevated risk signals yet.

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References

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