CVE-2009-0399: Chipmunk Blogger Script allows remote attackers to gain administrator privileges via a direct request to admin

This month

HIGH 7.5MITIGATE

CVE-2009-0399 is a high-severity flaw (CVSS 7.5) affecting chipmunk blogger. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Chipmunk Blogger Script allows remote attackers to gain administrator privileges via a direct request to admin/reguser.php. NOTE: this is only a vulnerability when the administrator does not properly follow installation directions.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.3% (top 16%)
CISA exploited list	No
Weakness	CWE-16, CWE-264
Published	2009-02-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: chipmunk scripts

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

Am I affected?

Timeline

2009-02-03 19:30 UTCPublished CVE record published
2026-06-16 23:04 UTCUpdated Record last modified

chipmunk scripts chipmunk blogger 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 chipmunk-blogger || rpm -q chipmunk-blogger || chipmunk-blogger --version

No fixed or unaffected release known

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

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: Chipmunk Blog - (Authentication Bypass) Add Admin

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-2009-0399?

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

Is CVE-2009-0399 being exploited?

CVE-2009-0399 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-2009-0399 affect?

CVE-2009-0399 affects chipmunk blogger. Severity is high (CVSS 7.5). Chipmunk Blogger Script allows remote attackers to gain administrator privileges via a direct request to admin/reguser.php. NOTE: this is only a vulnerability when the administrator does not properly follow installation directions.

How urgent is CVE-2009-0399?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2009-0403 HIGH 7.5 MITIGATE SQL injection vulnerability in admin/authenticate.php in Chipmunk Blogger Script allows remote attackers to ex

References

← Back to latest CVEs