How severe is CVE-2005-3991?

CVE-2005-3991 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2005-3991 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-3991?

CVE-2005-3991 affects Phpheaven Phpmychat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2005-3991?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2005-3991 published?

CVE-2005-3991 was published on 2005-12-04 and last updated on 2026-06-16.

CVE-2005-3991

CVE-2005-3991 is a medium-severity vulnerability in Phpheaven Phpmychat with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Phpheaven Phpmychat
Published: 2005-12-04
Last modified: 2026-06-16

Description

Multiple cross-site scripting (XSS) vulnerabilities in phpMyChat 0.14.6 allow remote attackers to inject arbitrary web script or HTML via the medium parameter to (1) start_page.css.php and (2) style.css.php; or the From parameter to users_popupL.php.

Frequently asked questions

What is CVE-2005-3991?: Multiple cross-site scripting (XSS) vulnerabilities in phpMyChat 0.14.6 allow remote attackers to inject arbitrary web script or HTML via the medium parameter to (1) start_page.css.php and (2) style.css.php; or the From parameter to users_popupL.php.
How severe is CVE-2005-3991?: CVE-2005-3991 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2005-3991 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-3991?: CVE-2005-3991 affects Phpheaven Phpmychat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-3991?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-3991 published?: CVE-2005-3991 was published on 2005-12-04 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:phpheaven:phpmychat:0.14.6:*:*:*:*:*:*:*

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CVE-2006-5898 — Medium (CVSS 5.0): Directory traversal vulnerability in localization/languages.lib.php3 in PhpMyChat 0.14.5 and earlier allows remote…
CVE-2008-1504 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in setup.php3 in phpHeaven phpMyChat 0.14.5 allows remote attackers to inject…

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