CVE-2007-6297: Multiple cross-site scripting (XSS) vulnerabilities in PHPMyChat 0.14.5 allow remote attackers to inject arbit

Routine

MEDIUM 4.3DOWNGRADE

CVE-2007-6297 is a medium-severity flaw (CVSS 4.3) affecting phpmychat. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in PHPMyChat 0.14.5 allow remote attackers to inject arbitrary web script or HTML via the (1) LIMIT parameter to chat/deluser.php3, the (2) Link parameter to chat/edituser.php3, or the (3) LastCheck or (4) B parameter to chat/users_popupL.php3. NOTE: the FontName vectors for start_page.css.php3 and style.css.php3 are already covered by CVE-2005-1619. The medium vectors for start_page.css.php3 (

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-79
Published	2007-12-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: php heaven

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

Am I affected?

Timeline

2007-12-10 18:46 UTCPublished CVE record published
2026-06-16 22:47 UTCUpdated Record last modified

php heaven phpmychat DOWNGRADE

Affected: 0.14.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.14.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.14.5 (Debian / Ubuntu)

apt-cache madison phpmychat sudo apt install phpmychat=<VERSION_BEFORE_0.14.5> sudo apt-mark hold phpmychat

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

dnf --showduplicates list phpmychat sudo dnf downgrade phpmychat-<VERSION_BEFORE_0.14.5> sudo dnf versionlock add phpmychat

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: phpMyChat 0.14.5 - '/chat/users_popupL.php3' Multiple Cross-Site Scripting Vulnerabilities
Exploit-DB: phpMyChat 0.14.5 - 'chat/deluser.php3?LIMIT' Cross-Site Scripting

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-2007-6297?

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

Is CVE-2007-6297 being exploited?

CVE-2007-6297 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-2007-6297 affect?

CVE-2007-6297 affects phpmychat. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in PHPMyChat 0.14.5 allow remote attackers to inject arbitrary web script or HTML via the (1) LIMIT parameter to chat/deluser.php3, the (2) Link parameter to chat/edituser.php3, or the (3)

How urgent is CVE-2007-6297?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2008-1504 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in setup.php3 in phpHeaven phpMyChat 0.14.5 allows remote attackers t
CVE-2007-6296 MEDIUM 5.0 DOWNGRADE PHP remote file inclusion vulnerability in users_popupL.php3 in phpMyChat 0.14.5 allows remote attackers to ex
CVE-2007-2477 HIGH 7.5 DOWNGRADE PHP remote file inclusion vulnerability in phpMyChat.php3 in phpMyChat 0.14.5 allows remote attackers to execu
CVE-2006-5898 MEDIUM 5.0 UPGRADE Directory traversal vulnerability in localization/languages.lib.php3 in PhpMyChat 0.14.5 and earlier allows re
CVE-2006-5088 HIGH 7.5 DOWNGRADE PHP remote file inclusion vulnerability in connected_users.lib.php3 in phpHeaven phpMyChat 0.1 allows remote a

References

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