How severe is CVE-2005-4526?

CVE-2005-4526 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2005-4526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-4526?

CVE-2005-4526 primarily affects Clearswift Mimesweeper For Web. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-4526?

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

When was CVE-2005-4526 published?

CVE-2005-4526 was published on 2005-12-28 and last updated on 2026-06-16.

CVE-2005-4526

CVE-2005-4526 is a medium-severity vulnerability in Clearswift Mimesweeper For Web with a CVSS 2.0 base score of 5.0. 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 5.0)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Clearswift Mimesweeper For Web
Published: 2005-12-28
Last modified: 2026-06-16

Description

Clearswift MIMEsweeper For Web (a.k.a. WEBsweeper) 4.0 through 5.1 allows remote attackers to bypass filtering via a URL that does not include a .exe extension but returns an executable file.

Frequently asked questions

What is CVE-2005-4526?: Clearswift MIMEsweeper For Web (a.k.a. WEBsweeper) 4.0 through 5.1 allows remote attackers to bypass filtering via a URL that does not include a .exe extension but returns an executable file.
How severe is CVE-2005-4526?: CVE-2005-4526 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2005-4526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-4526?: CVE-2005-4526 primarily affects Clearswift Mimesweeper For Web. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-4526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2005-4526 published?: CVE-2005-4526 was published on 2005-12-28 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:clearswift:mimesweeper_for_web:4.0:*:*:*:*:*:*:*
cpe:2.3:a:clearswift:mimesweeper_for_web:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:clearswift:mimesweeper_for_web:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:clearswift:mimesweeper_for_web:5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:clearswift:mimesweeper_for_web:5.0.4:*:*:*:*:*:*:*
cpe:2.3:a:clearswift:mimesweeper_for_web:5.0.5:*:*:*:*:*:*:*
cpe:2.3:a:clearswift:mimesweeper_for_web:5.1:*:*:*:*:*:*:*

More vulnerabilities in Clearswift Mimesweeper For Web

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CVE-2006-3522 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in Clearswift MIMEsweeper for Web before 5.1.15 Hotfix allows remote attackers…
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