CVE-2015-6144

Internet Explorer vulnerability

CVSS

4.3

EPSS

13.4%

EPSS pct

96th

Exploited

No known

Microsoft Internet Explorer 8 through 11 and Microsoft Edge mishandle HTML attributes in HTTP responses, which allows remote attackers to bypass a cross-site scripting (XSS) protection mechanism via unspecified vectors, aka "Microsoft Browser XSS Filter Bypass Vulnerability."

Affected vendor

Microsoft

Affected product

Internet Explorer

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2015-12-09

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to integrity.

Its EPSS score of 13.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2015-6144

Confirm whether Microsoft Internet Explorer is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2015-6144.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-6144

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-6144 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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