How severe is CVE-2001-0835?

CVE-2001-0835 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-0835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0835?

CVE-2001-0835 affects Bradford Barrett Webalizer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0835?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2001-0835 published?

CVE-2001-0835 was published on 2001-12-06 and last updated on 2026-06-16.

CVE-2001-0835

CVE-2001-0835 is a high-severity vulnerability in Bradford Barrett Webalizer with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Bradford Barrett Webalizer
Published: 2001-12-06
Last modified: 2026-06-16

Description

Cross-site scripting vulnerability in Webalizer 2.01-06, and possibly other versions, allows remote attackers to inject arbitrary HTML tags by specifying them in (1) search keywords embedded in HTTP referrer information, or (2) host names that are retrieved via a reverse DNS lookup.

Frequently asked questions

What is CVE-2001-0835?: Cross-site scripting vulnerability in Webalizer 2.01-06, and possibly other versions, allows remote attackers to inject arbitrary HTML tags by specifying them in (1) search keywords embedded in HTTP referrer information, or (2) host names that are retrieved via a reverse DNS lookup.
How severe is CVE-2001-0835?: CVE-2001-0835 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-0835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0835?: CVE-2001-0835 affects Bradford Barrett Webalizer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0835?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2001-0835 published?: CVE-2001-0835 was published on 2001-12-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:bradford_barrett:webalizer:*:*:*:*:*:*:*:*

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