CVE-2008-6142: Multiple SQL injection vulnerabilities in admin/usercheck.php in FlexPHPic 0.0.4 and FlexPHPic Pro 0.0.3, and

This month

HIGH 7.5DOWNGRADE

CVE-2008-6142 is a high-severity flaw (CVSS 7.5) affecting flexphpic. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple SQL injection vulnerabilities in admin/usercheck.php in FlexPHPic 0.0.4 and FlexPHPic Pro 0.0.3, and other 0.0.x versions, allow remote attackers to execute arbitrary SQL commands via (1) the checkuser parameter (aka username field), or (2) the checkpass parameter (aka password field), to admin/index.php.

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	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-89
Published	2009-02-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: china-on-site

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

Am I affected?

Timeline

2009-02-16 17:30 UTCPublished CVE record published
2026-06-16 23:01 UTCUpdated Record last modified

china-on-site flexphpic DOWNGRADE

Affected: 0.0.3 · 0.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.0.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.0.3 (Debian / Ubuntu)

apt-cache madison flexphpic sudo apt install flexphpic=<VERSION_BEFORE_0.0.3> sudo apt-mark hold flexphpic

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

dnf --showduplicates list flexphpic sudo dnf downgrade flexphpic-<VERSION_BEFORE_0.0.3> sudo dnf versionlock add flexphpic

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: Flexphpic 0.0.x - 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-2008-6142?

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

Is CVE-2008-6142 being exploited?

CVE-2008-6142 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-2008-6142 affect?

CVE-2008-6142 affects flexphpic. Severity is high (CVSS 7.5). Multiple SQL injection vulnerabilities in admin/usercheck.php in FlexPHPic 0.0.4 and FlexPHPic Pro 0.0.3, and other 0.0.x versions, allow remote attackers to execute arbitrary SQL commands via (1) the checkuser parameter (aka username field

How urgent is CVE-2008-6142?

Priority 47/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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