CVE-2006-4586: The admin panel in Tr Forum 2.0 accepts a username and password hash for authentication, which allows remote a

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MEDIUM 5.5DOWNGRADE

CVE-2006-4586 is a medium-severity flaw (CVSS 5.5) affecting tr forum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The admin panel in Tr Forum 2.0 accepts a username and password hash for authentication, which allows remote authenticated users to perform unauthorized actions, as demonstrated by modifying user settings via the id parameter to /membres/modif_profil.php, and changing a password via /membres/change_mdp.php. NOTE: this can be leveraged with other Tr Forum vulnerabilities to allow unauthenticated attackers to gain privileges.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.5 (Medium)
EPSS exploit chance	3.3% (top 12%)
CISA exploited list	No
Published	2006-09-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: tr forum

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

Am I affected?

Timeline

2006-09-06 22:04 UTCPublished CVE record published
2026-06-16 22:29 UTCUpdated Record last modified

tr forum tr forum DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy tr-forum || rpm -q tr-forum || tr-forum --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison tr-forum sudo apt install tr-forum=<VERSION_BEFORE_2.0> sudo apt-mark hold tr-forum

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

dnf --showduplicates list tr-forum sudo dnf downgrade tr-forum-<VERSION_BEFORE_2.0> sudo dnf versionlock add tr-forum

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: TR Forum 2.0 - SQL Injection / Bypass Security Restriction

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-2006-4586?

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

Is CVE-2006-4586 being exploited?

CVE-2006-4586 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-2006-4586 affect?

CVE-2006-4586 affects tr forum. Severity is medium (CVSS 5.5). The admin panel in Tr Forum 2.0 accepts a username and password hash for authentication, which allows remote authenticated users to perform unauthorized actions, as demonstrated by modifying user settings via the id parameter to /membres/mo

How urgent is CVE-2006-4586?

Priority 46/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-4585 HIGH 9.0 DOWNGRADE SQL injection vulnerability in admin/editer.php in Tr Forum 2.0 allows remote authenticated users to execute a
CVE-2006-4584 HIGH 7.5 DOWNGRADE Tr Forum 2.0 allows remote attackers to bypass authentication and add an administrative account via the login

References

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