How severe is CVE-2004-0339?

CVE-2004-0339 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2004-0339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0339?

CVE-2004-0339 primarily affects Phpbb Group Phpbb. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-0339?

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

When was CVE-2004-0339 published?

CVE-2004-0339 was published on 2004-11-23 and last updated on 2026-06-16.

CVE-2004-0339

CVE-2004-0339 is a medium-severity vulnerability in Phpbb Group Phpbb with a CVSS 2.0 base score of 6.8. 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 6.8)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Phpbb Group Phpbb
Published: 2004-11-23
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in ViewTopic.php in phpBB, possibly 2.0.6c and earlier, allows remote attackers to execute arbitrary script or HTML as other users via the postorder parameter.

Frequently asked questions

What is CVE-2004-0339?: Cross-site scripting (XSS) vulnerability in ViewTopic.php in phpBB, possibly 2.0.6c and earlier, allows remote attackers to execute arbitrary script or HTML as other users via the postorder parameter.
How severe is CVE-2004-0339?: CVE-2004-0339 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2004-0339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0339?: CVE-2004-0339 primarily affects Phpbb Group Phpbb. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0339?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0339 published?: CVE-2004-0339 was published on 2004-11-23 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:phpbb_group:phpbb:2.0:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0.6c:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:2.0_rc4:*:*:*:*:*:*:*

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