CVE-2007-2147: admin/options.php in Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier does not check for administrativ

Q: How do I fix CVE-2007-2147?

chatness: upgrade to newer than 2.5.3. Exact commands for each OS are on this page.

Q: Is CVE-2007-2147 being exploited?

CVE-2007-2147 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2007-2147 affect?

CVE-2007-2147 affects chatness. Severity is high (CVSS 10.0). admin/options.php in Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier does not check for administrative credentials, which allows remote attackers to read and modify the classes/vars.php and classes/varstuff.php configuration files

Q: How urgent is CVE-2007-2147?

Priority 62/100. Critical severity; Public exploit reference

This week

HIGH 10.0UPGRADE

CVE-2007-2147 is a high-severity flaw (CVSS 10.0) affecting chatness. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

admin/options.php in Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier does not check for administrative credentials, which allows remote attackers to read and modify the classes/vars.php and classes/varstuff.php configuration files via direct requests.

Why this priority

Critical severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	3.4% (top 11%)
CISA exploited list	No
Published	2007-04-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: stephen craton

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

Am I affected?

Timeline

2007-04-19 10:19 UTCPublished CVE record published
2026-06-16 22:39 UTCUpdated Record last modified

stephen craton chatness UPGRADE

Affected: <= 2.5.3

Fixed in: newer than 2.5.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.5.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chatness

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chatness

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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: Chatness 2.5.3 - '/options.php/save.php' Remote Code Execution

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-2007-2147?

chatness: upgrade to newer than 2.5.3. Exact commands for each OS are on this page.

Is CVE-2007-2147 being exploited?

CVE-2007-2147 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-2007-2147 affect?

CVE-2007-2147 affects chatness. Severity is high (CVSS 10.0). admin/options.php in Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier does not check for administrative credentials, which allows remote attackers to read and modify the classes/vars.php and classes/varstuff.php configuration files

How urgent is CVE-2007-2147?

Priority 62/100. Critical severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2007-2149 HIGH 10.0 UPGRADE Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier stores usernames and unencrypted passwords in (1) cla
CVE-2007-2148 MEDIUM 6.5 UPGRADE Direct static code injection vulnerability in admin/save.php in Stephen Craton (aka WiredPHP) Chatness 2.5.3 a
CVE-2005-0930 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in message.php in Chatness 2.5.1 and earlier allows remote attackers

References

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