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CVE record

CVE-2021-1879

Apple iOS, iPadOS, and watchOS WebKit Cross-Site Scripting (XSS) Vulnerability

Apple iOS, iPadOS, and watchOS WebKit contain an unspecified vulnerability that allows for universal cross-site scripting (XSS) when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

CVE evidence

Known exploitation

Listed in CISA KEV

Absence from the fetched catalog does not establish that exploitation has not occurred.

Severity

unknown

No parseable CVSS vector returned

Affected packages

0

Supported package records returned by OSV. Vendor and product names are not used to infer matches.

CISA Known Exploited Vulnerabilities

Catalog record

Vendor / project
Apple
Product
iOS, iPadOS, and watchOS
Date added
Nov 3, 2021
CISA federal remediation due date
Nov 17, 2021
Required action
Apply updates per vendor instructions.
Known ransomware campaign use
Unknown
CWE
CWE-79

OSV package mapping

Affected open-source packages

OSV did not return a package mapping in the five supported ecosystems. RequestGuard does not infer package names from the CISA vendor or product fields.