Is CVE-2025-30434 in the CISA KEV catalog?

No. CVE-2025-30434 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-30434?

CVE-2025-30434 has a CVSS v3 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2025-30434?

CVE-2025-30434 has an EPSS score of 0.25% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-30434?

Upgrade ipados to 18.4 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2025-30434

MEDIUM

5.0

CVSS v3

NVD

Description

The issue was addressed with improved input sanitization. This issue is fixed in iOS 18.4 and iPadOS 18.4. Processing a maliciously crafted file may lead to a cross site scripting attack.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

ipadosNVD

Affected:< 18.4Fixed in:18.4CVE-2025-30434derived from NVD

iphone osNVD

Affected:< 18.4Fixed in:18.4CVE-2025-30434derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.25%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Vendor Advisory1

support.apple.com

Other references1

seclists.org

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.