CVE-2008-6911: SQL injection vulnerability in the authenticateUser function in includes/authentication.inc.php in BrewBlogger

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MEDIUM 6.8DOWNGRADE

CVE-2008-6911 is a medium-severity flaw (CVSS 6.8) affecting brewblogger. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in the authenticateUser function in includes/authentication.inc.php in BrewBlogger (BB) 2.1.0.1, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the loginUsername parameter to includes/logincheck.inc.php. NOTE: some of these details are obtained from third party information.

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	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-89
Published	2009-08-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: brewblogger

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

Am I affected?

Timeline

2009-08-06 22:30 UTCPublished CVE record published
2026-06-16 23:03 UTCUpdated Record last modified

brewblogger brewblogger DOWNGRADE

Affected: 2.1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1.0.1 (Debian / Ubuntu)

apt-cache madison brewblogger sudo apt install brewblogger=<VERSION_BEFORE_2.1.0.1> sudo apt-mark hold brewblogger

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

dnf --showduplicates list brewblogger sudo dnf downgrade brewblogger-<VERSION_BEFORE_2.1.0.1> sudo dnf versionlock add brewblogger

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: BrewBlogger 2.1.0.1 - Arbitrary 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-2008-6911?

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

Is CVE-2008-6911 being exploited?

CVE-2008-6911 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-2008-6911 affect?

CVE-2008-6911 affects brewblogger. Severity is medium (CVSS 6.8). SQL injection vulnerability in the authenticateUser function in includes/authentication.inc.php in BrewBlogger (BB) 2.1.0.1, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the loginUsername

How urgent is CVE-2008-6911?

Priority 49/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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