SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2015-6176

Microsoft Edge mishandles HTML attributes in HTTP responses, which allows remote attackers to bypass a cross-site scripting (XSS) protection mechanism via unspecified vectors, aka "Microsoft Edge XSS Filter Bypass Vulnerability."

EXPLOITMEDIUM 4.3EPSS 14.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 14.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft Edge mishandles HTML attributes in HTTP responses, which allows remote attackers to bypass a cross-site scripting (XSS) protection mechanism via unspecified vectors, aka "Microsoft Edge XSS Filter Bypass Vulnerability."

CVSS 2.0
4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS
14.12% probability · 97th percentile
Public exploits
1 in Exploit-DB · first 22 July 2025
CISA KEV
Not listed
Weakness
CWE-79
Affected
microsoft/edge
Source
secure@microsoft.com
EPSS trend
0%8%15%4 November 2026: 14.12%4 November 20264 November 2026

EPSS 14.1% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-52372source ↗Microsoft Edge Windows 10 Version 1511 - Cross Site Scripting (XSS)windows · nu11secur1tyremote22 July 2025no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.