CVE-2004-0755

CVE-2004-0755 is a low-severity vulnerability in Yukihiro Matsumoto Ruby with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The FileStore capability in CGI::Session for Ruby before 1.8.1, and possibly PStore, creates files with insecure permissions, which can allow local users to steal session information and hijack sessions.

Frequently asked questions

What is CVE-2004-0755?
The FileStore capability in CGI::Session for Ruby before 1.8.1, and possibly PStore, creates files with insecure permissions, which can allow local users to steal session information and hijack sessions.
How severe is CVE-2004-0755?
CVE-2004-0755 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2004-0755 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0755?
CVE-2004-0755 primarily affects Yukihiro Matsumoto Ruby. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0755?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0755 published?
CVE-2004-0755 was published on 2004-10-20 and last updated on 2026-06-16.

References

Affected products (2)

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