CVE-2021-30890

Status: ModifiedMedium (6.1)—
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.
CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base score: 6.1
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.46%
Percentile among all scored CVEs: 73
Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (7)

Apple — Ipados Apple — Iphone OS Apple — Macos Apple — Tvos Apple — Watchos Debian — Debian Linux Fedoraproject — Fedora
CWEs

CWE-79
References

Raw JSON (NVD)

Show
{
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          "authentication": "NONE",
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  "lastModified": "2026-06-17T03:51:05.277",
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