How severe is CVE-2021-30862?

CVE-2021-30862 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-30862 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-30862?

CVE-2021-30862 affects Apple Itunes U. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-30862?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-30862 published?

CVE-2021-30862 was published on 2021-08-24 and last updated on 2026-06-17.

CVE-2021-30862

CVE-2021-30862 is a medium-severity vulnerability in Apple Itunes U with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apple Itunes U
Published: 2021-08-24
Last modified: 2026-06-17

Description

A validation issue was addressed with improved input sanitization. This issue is fixed in iTunes U 3.8.3. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.

Frequently asked questions

What is CVE-2021-30862?: A validation issue was addressed with improved input sanitization. This issue is fixed in iTunes U 3.8.3. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.
How severe is CVE-2021-30862?: CVE-2021-30862 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-30862 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-30862?: CVE-2021-30862 affects Apple Itunes U. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-30862?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-30862 published?: CVE-2021-30862 was published on 2021-08-24 and last updated on 2026-06-17.

References

https://support.apple.com/en-us/HT212809

Affected products (1)

cpe:2.3:a:apple:itunes_u:*:*:*:*:*:*:*:*

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