CVE-2009-0409: SQL injection vulnerability in offline_auth.php in Max.Blog 1.0.6 and earlier, when magic_quotes_gpc is disabl

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MEDIUM 6.8DOWNGRADE

CVE-2009-0409 is a medium-severity flaw (CVSS 6.8) affecting max.blog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in offline_auth.php in Max.Blog 1.0.6 and earlier, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the username parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-89
Published	2009-02-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mzbservices

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

mzbservices max.blog DOWNGRADE

Affected: 1.0.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.6

1. Check installed version

apt-cache policy max.blog || rpm -q max.blog || max.blog --version

2. No fixed release: DOWNGRADE to a release before 1.0.6 (Debian / Ubuntu)

apt-cache madison max.blog sudo apt install max.blog=<VERSION_BEFORE_1.0.6> sudo apt-mark hold max.blog

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

dnf --showduplicates list max.blog sudo dnf downgrade max.blog-<VERSION_BEFORE_1.0.6> sudo dnf versionlock add max.blog

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: Max.Blog 1.0.6 - 'offline_auth.php' Offline Authentication Bypass

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-2009-0409?

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

Is CVE-2009-0409 being exploited?

CVE-2009-0409 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-2009-0409 affect?

CVE-2009-0409 affects max.blog. Severity is medium (CVSS 6.8). SQL injection vulnerability in offline_auth.php in Max.Blog 1.0.6 and earlier, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the username parameter.

How urgent is CVE-2009-0409?

Priority 45/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2009-0383 MEDIUM 6.4 DOWNGRADE delete.php in Max.Blog 1.0.6 does not properly restrict access, which allows remote attackers to delete arbitr

References

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