How severe is CVE-2001-1157?

CVE-2001-1157 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2001-1157 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-1157?

CVE-2001-1157 primarily affects Baltimore Technologies Websweeper. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2001-1157?

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-2001-1157 published?

CVE-2001-1157 was published on 2001-08-12 and last updated on 2026-06-16.

CVE-2001-1157

CVE-2001-1157 is a high-severity vulnerability in Baltimore Technologies Websweeper 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: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Baltimore Technologies Websweeper
Published: 2001-08-12
Last modified: 2026-06-16

Description

Baltimore Technologies WEBsweeper 4.0 and 4.02 does not properly filter Javascript from HTML pages, which could allow remote attackers to bypass the filtering via (1) an extra leading < and one or more characters before the SCRIPT tag, or (2) tags using Unicode.

Frequently asked questions

What is CVE-2001-1157?: Baltimore Technologies WEBsweeper 4.0 and 4.02 does not properly filter Javascript from HTML pages, which could allow remote attackers to bypass the filtering via (1) an extra leading < and one or more characters before the SCRIPT tag, or (2) tags using Unicode.
How severe is CVE-2001-1157?: CVE-2001-1157 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2001-1157 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-1157?: CVE-2001-1157 primarily affects Baltimore Technologies Websweeper. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2001-1157?: 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-2001-1157 published?: CVE-2001-1157 was published on 2001-08-12 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:baltimore_technologies:websweeper:4.0:*:*:*:*:*:*:*
cpe:2.3:o:baltimore_technologies:websweeper:4.02:*:*:*:*:*:*:*

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