An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain.
In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action. For example, an attacker could trick users into clicking a link that takes them to the attacker's site. An attacker who successfully exploited this vulnerability could elevate privileges in affected versions of Microsoft Edge.
The security update addresses the vulnerability by helping to ensure that cross-domain policies are properly enforced in Microsoft Edge.
In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action. For example, an attacker could trick users into clicking a link that takes them to the attacker's site. An attacker who successfully exploited this vulnerability could elevate privileges in affected versions of Microsoft Edge.
The security update addresses the vulnerability by helping to ensure that cross-domain policies are properly enforced in Microsoft Edge.
Metrics
Affected Vendors & Products
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Microsoft
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Configuration 1 [-]
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Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 19 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain.In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability, aka 'Microsoft Edge Elevation of Privilege Vulnerability'. | An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain. In a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action. For example, an attacker could trick users into clicking a link that takes them to the attacker's site. An attacker who successfully exploited this vulnerability could elevate privileges in affected versions of Microsoft Edge. The security update addresses the vulnerability by helping to ensure that cross-domain policies are properly enforced in Microsoft Edge. |
| Title | Microsoft Edge Elevation of Privilege Vulnerability | |
| CPEs | cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:* | |
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| Metrics |
cvssV3_1
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cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: microsoft
Published:
Updated: 2026-08-19T16:33:51.399Z
Reserved: 2019-11-04T00:00:00.000Z
Link: CVE-2020-1056
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-05-21T23:15:12.197
Modified: 2026-08-19T17:17:10.487
Link: CVE-2020-1056
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses