XSS in Apple iOS And Ipados
CVE-2021-30890
A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.0.1, iOS 15.1 and iPadOS 15.1, watchOS 8.1, tvOS 15.1. Processing maliciously crafted web content may lead to universal cross site scripting.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.015 (72.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Apple iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions unspecified
- Apple tvOS
- Apple watchOS
- Debian Linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT212869
- support.apple.com/en-us/HT212867
- support.apple.com/en-us/HT212874
- support.apple.com/en-us/HT212876
- www.openwall.com/lists/oss-security/2021/12/20/6 (mailing-list)
- www.debian.org/security/2021/dsa-5030 (vendor-advisory)
- www.debian.org/security/2021/dsa-5031 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-30890?
- CVE-2021-30890 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-08-24.
- How severe is CVE-2021-30890?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-30890 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.