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CVE-2021-1826

Date: September 8, 2021

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may lead to universal cross site scripting.

Severity Score

Related Resources (10)

https://security.alpinelinux.org/vuln/CVE-2021-1826
https://nvd.nist.gov/vuln/detail/CVE-2021-1826
https://security-tracker.debian.org/tracker/CVE-2021-1826
https://access.redhat.com/security/cve/CVE-2021-1826
https://support.apple.com/en-us/HT212323
https://support.apple.com/en-us/HT212324
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-1826
https://support.apple.com/en-us/HT212317
https://support.apple.com/en-us/HT212325
https://www.mend.io/vulnerability-database/CVE-2021-1826

Severity Score

Weakness Type (CWE)

Cross-Site Scripting (XSS)

CWE-79

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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