CVE-2009-0648: Multiple cross-site request forgery (CSRF) vulnerabilities in the manage_users handler in admin/index.php in F

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MEDIUM 6.8DOWNGRADE

CVE-2009-0648 is a medium-severity flaw (CVSS 6.8) affecting falt4 extreme. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site request forgery (CSRF) vulnerabilities in the manage_users handler in admin/index.php in Falt4 CMS (aka Falt4 Extreme) RC4 allow remote attackers to hijack the authentication of administrators for requests that change passwords via the (1) edit and (2) edit_now actions.

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	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-352
Published	2009-02-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: falt4

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

Am I affected?

Timeline

2009-02-19 16:30 UTCPublished CVE record published
2026-06-16 23:05 UTCUpdated Record last modified

falt4 falt4 extreme DOWNGRADE

Affected: rc4

Fixed in: no fixed release known

Safe to downgrade to: a release before rc4

1. Check installed version

apt-cache policy falt4-extreme || rpm -q falt4-extreme || falt4-extreme --version

2. No fixed release: DOWNGRADE to a release before rc4 (Debian / Ubuntu)

apt-cache madison falt4-extreme sudo apt install falt4-extreme=<VERSION_BEFORE_rc4> sudo apt-mark hold falt4-extreme

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

dnf --showduplicates list falt4-extreme sudo dnf downgrade falt4-extreme-<VERSION_BEFORE_rc4> sudo dnf versionlock add falt4-extreme

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.

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-2009-0648?

falt4 extreme: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2009-0648 being exploited?

CVE-2009-0648 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-2009-0648 affect?

CVE-2009-0648 affects falt4 extreme. Severity is medium (CVSS 6.8). Multiple cross-site request forgery (CSRF) vulnerabilities in the manage_users handler in admin/index.php in Falt4 CMS (aka Falt4 Extreme) RC4 allow remote attackers to hijack the authentication of administrators for requests that change pa

How urgent is CVE-2009-0648?

Priority 41/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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