CVE-2021-1879 vulnerability in Apple Products
Published on April 2, 2021
Known Exploited Vulnerability
This Apple iOS Webkit Browser Engine XSS vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Processing maliciously crafted web content may lead to universal cross site scripting. Apple is aware of a report that this issue may have been actively exploited.
The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2021-1879 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2021-1879 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2021-1879
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-1879 are published in these products:
Affected Versions
Apple iOS and iPadOS:- Version unspecified and below 14.4 is affected.
- Version unspecified and below 12.5 is affected.
- Version unspecified and below 7.3 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.