How severe is CVE-2005-0863?

CVE-2005-0863 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2005-0863 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-0863?

CVE-2005-0863 primarily affects Phpopenchat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-0863?

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

When was CVE-2005-0863 published?

CVE-2005-0863 was published on 2005-05-02 and last updated on 2026-06-16.

CVE-2005-0863

CVE-2005-0863 is a medium-severity vulnerability in Phpopenchat 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% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Phpopenchat
Published: 2005-05-02
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in PHPOpenChat v3.x allows remote attackers to inject arbitrary web script or HTML via (1) the chatter parameter to regulars.php or (2) the chatter, chatter1, chatter2, chatter3, or chatter4 parameters to register.php.

Frequently asked questions

What is CVE-2005-0863?: Cross-site scripting (XSS) vulnerability in PHPOpenChat v3.x allows remote attackers to inject arbitrary web script or HTML via (1) the chatter parameter to regulars.php or (2) the chatter, chatter1, chatter2, chatter3, or chatter4 parameters to register.php.
How severe is CVE-2005-0863?: CVE-2005-0863 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2005-0863 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-0863?: CVE-2005-0863 primarily affects Phpopenchat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-0863?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-0863 published?: CVE-2005-0863 was published on 2005-05-02 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:phpopenchat:phpopenchat:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:phpopenchat:phpopenchat:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:phpopenchat:phpopenchat:3.0.2:*:*:*:*:*:*:*

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