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Vulnerability record · CVE-2008-4515 · published 9 October 2008

CVE-2008-4515: Blue coat systems k9 web protection improper authentication vulnerability

Blue Coat Systems · K9 Web Protection

Blue Coat K9 Web Protection 4.0.230 Beta relies on client-side JavaScript as a protection mechanism, which allows remote attackers to bypass authentication and access the (1) summary, (2) detail, (3) overrides, and (4) pwemail pages by disabling JavaScript.

7.5 CVSS 2.0 High EPSS 1.6% · top 25.8% CWE-287 · Improper authentication
7.5CVSS 2.0 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

Blue Coat K9 Web Protection 4.0.230 Beta relies on client-side JavaScript as a protection mechanism, which allows remote attackers to bypass authentication and access the (1) summary, (2) detail, (3) overrides, and (4) pwemail pages by disabling JavaScript.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://dicas3000.blogspot.com/2008/10/blue-coat-k9-web-protection-v40230-beta.html
http://seclists.org/fulldisclosure/2008/Oct/0070.html
http://www.securityfocus.com/bid/31584
https://exchange.xforce.ibmcloud.com/vulnerabilities/45696
http://dicas3000.blogspot.com/2008/10/blue-coat-k9-web-protection-v40230-beta.html
http://seclists.org/fulldisclosure/2008/Oct/0070.html
http://www.securityfocus.com/bid/31584
https://exchange.xforce.ibmcloud.com/vulnerabilities/45696

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2008-4515), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.