How severe is CVE-2003-1373?

CVE-2003-1373 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2003-1373 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1373?

CVE-2003-1373 primarily affects Phpbb Group Phpbb. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2003-1373?

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

When was CVE-2003-1373 published?

CVE-2003-1373 was published on 2003-12-31 and last updated on 2026-06-16.

CVE-2003-1373

CVE-2003-1373 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. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Phpbb Group Phpbb
Published: 2003-12-31
Last modified: 2026-06-16

Description

Directory traversal vulnerability in auth.php for PhpBB 1.4.0 through 1.4.4 allows remote attackers to read and include arbitrary files via .. (dot dot) sequences followed by NULL (%00) characters in CGI parameters, as demonstrated using the lang parameter in prefs.php.

Frequently asked questions

What is CVE-2003-1373?: Directory traversal vulnerability in auth.php for PhpBB 1.4.0 through 1.4.4 allows remote attackers to read and include arbitrary files via .. (dot dot) sequences followed by NULL (%00) characters in CGI parameters, as demonstrated using the lang parameter in prefs.php.
How severe is CVE-2003-1373?: CVE-2003-1373 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2003-1373 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1373?: CVE-2003-1373 primarily affects Phpbb Group Phpbb. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-1373?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-1373 published?: CVE-2003-1373 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:phpbb_group:phpbb:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:phpbb_group:phpbb:1.4.4:*:*:*:*:*:*:*

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