CVE-2009-4904: article.php in oBlog does not properly restrict comments, which allows remote attackers to cause a denial of s

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MEDIUM 5.0MITIGATE

CVE-2009-4904 is a medium-severity flaw (CVSS 5.0) affecting oblog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

article.php in oBlog does not properly restrict comments, which allows remote attackers to cause a denial of service (blog spam) via a comment=new action.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-264
Published	2010-06-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: dootzky

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

Am I affected?

Timeline

2010-06-25 19:30 UTCPublished CVE record published
2026-06-16 23:14 UTCUpdated Record last modified

dootzky oblog MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2009-4904?

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

Is CVE-2009-4904 being exploited?

CVE-2009-4904 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-2009-4904 affect?

CVE-2009-4904 affects oblog. Severity is medium (CVSS 5.0). article.php in oBlog does not properly restrict comments, which allows remote attackers to cause a denial of service (blog spam) via a comment=new action.

How urgent is CVE-2009-4904?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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