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CVE-2021-30744

Description: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. This issue is fixed in…

Medium6.1EPSS 1.2%
Published
Updated
Reserved
Assigned by
apple

Description

Description: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. Processing maliciously crafted web content may lead to universal cross site scripting.

Timeline

  1. ID reserved

    By apple

  2. · 5 months later

    Published

  3. · 3 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2021-30744, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1Medium6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
1.2% · top 33% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Weakness

Affected products

References (5)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated .