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CVE-2010-5144

16
FAUCET Score

CVE-2010-5144 describes a bypass vulnerability in the ISAPI Filter plug-in within Websense Enterprise, Web Security, and Web Filter versions 6.3.3 and earlier, specifically when integrated with Microsoft ISA or Forefront TMG servers. This flaw allows remote attackers to circumvent web traffic filtering and monitoring by injecting an HTTP Via header. With a CVSS score of 4.3 (medium severity), this vulnerability has a network attack vector and medium attack complexity, potentially leading to partial integrity impact by allowing unauthorized content access. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.3.3CPE matchmatch criteria
cpe:2.3:a:websense:websense:*:-:enterprise:*:*:*:*:*
6.3.0CPE matchmatch criteria
cpe:2.3:a:websense:websense:6.3.0:-:enterprise:*:*:*:*:*
6.3.1CPE matchmatch criteria
cpe:2.3:a:websense:websense:6.3.1:-:enterprise:*:*:*:*:*
6.3.0CPE matchmatch criteria
cpe:2.3:a:websense:websense_web_security:6.3.0:*:*:*:*:*:*:*
6.3.1CPE matchmatch criteria
cpe:2.3:a:websense:websense_web_security:6.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.49%
Probability of exploitation in next 30 days
EPSS Percentile
71.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0149 is in the 45th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/fulldisclosure/2010-05/0376.html
Exploit
mrhinkydink.blogspot.com / 2010/05/websense-633-via-bypass.html
Exploit
websense.com / support/article/t-kbarticle/Web-Security-Vulnerability-Microsoft-ISA-Server-Integrations
Vendor Advisory