CVE-2007-2149: Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier stores usernames and unencrypted passwords in (1) cla

Q: How do I fix CVE-2007-2149?

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

Q: Is CVE-2007-2149 being exploited?

CVE-2007-2149 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-2007-2149 affect?

CVE-2007-2149 affects chatness. Severity is high (CVSS 10.0). Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier stores usernames and unencrypted passwords in (1) classes/vars.php and (2) classes/varstuff.php, and recommends 0666 or 0777 permissions for these files, which allows local users to g

Q: How urgent is CVE-2007-2149?

Priority 62/100. Critical severity; Public exploit reference

This week

HIGH 10.0UPGRADE

CVE-2007-2149 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.

Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier stores usernames and unencrypted passwords in (1) classes/vars.php and (2) classes/varstuff.php, and recommends 0666 or 0777 permissions for these files, which allows local users to gain privileges by reading the files, and allows remote attackers to obtain credentials via a direct request for admin/options.php.

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	3.1% (top 12%)
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-2007-2149?

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

Is CVE-2007-2149 being exploited?

CVE-2007-2149 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-2007-2149 affect?

CVE-2007-2149 affects chatness. Severity is high (CVSS 10.0). Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier stores usernames and unencrypted passwords in (1) classes/vars.php and (2) classes/varstuff.php, and recommends 0666 or 0777 permissions for these files, which allows local users to g

How urgent is CVE-2007-2149?

Priority 62/100. Critical severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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-2007-2147 HIGH 10.0 UPGRADE admin/options.php in Stephen Craton (aka WiredPHP) Chatness 2.5.3 and earlier does not check for administrativ
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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