CVE-2021-1825

webkitgtk: Input validation issue leading to cross site scripting attack

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An input validation issue was addressed with improved input validation. This issue is fixed in iTunes 12.11.3 for Windows, iCloud for Windows 12.3, macOS Big Sur 11.3, Safari 14.1, watchOS 7.4, tvOS 14.5, iOS 14.5 and iPadOS 14.5. Processing maliciously crafted web content may lead to a cross site scripting attack.

Se abordó un problema de comprobación de entradas con una comprobación de entrada mejorada. Este problema se corrigió en iTunes versión 12.11.3 para Windows, iCloud para Windows versión 12.3, macOS Big Sur versión 11.3, Safari versión 14.1, watchOS versión 7.4, tvOS versión 14.5, iOS versión 14.5 e iPadOS versión 14.5. El procesamiento de contenido web diseñado maliciosamente puede conllevar un ataque de tipo cross site scripting

An update that fixes 43 vulnerabilities is now available. This update for webkit2gtk3 fixes the following issues. Fixed logic issue allowing unexpectedly unenforced Content Security Policy when processing maliciously crafted web content. Fixed logic issue allowing universal cross site scripting when processing maliciously crafted web content.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-08 CVE Reserved
2021-04-28 CVE Published
2024-08-03 CVE Updated
2025-06-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (9)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/en-us/HT212317	2021-09-16
https://support.apple.com/en-us/HT212318	2021-09-16
https://support.apple.com/en-us/HT212319	2021-09-16
https://support.apple.com/en-us/HT212321	2021-09-16
https://support.apple.com/en-us/HT212323	2021-09-16
https://support.apple.com/en-us/HT212324	2021-09-16
https://support.apple.com/en-us/HT212325	2021-09-16
https://access.redhat.com/security/cve/CVE-2021-1825	2021-05-18
https://bugzilla.redhat.com/show_bug.cgi?id=1986858	2021-05-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Icloud Search vendor "Apple" for product "Icloud"				< 12.3 Search vendor "Apple" for product "Icloud" and version " < 12.3"		windows		Affected
Apple Search vendor "Apple"		Itunes Search vendor "Apple" for product "Itunes"				< 12.11.3 Search vendor "Apple" for product "Itunes" and version " < 12.11.3"		windows		Affected
Apple Search vendor "Apple"		Safari Search vendor "Apple" for product "Safari"				< 14.1 Search vendor "Apple" for product "Safari" and version " < 14.1"		-		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 14.5 Search vendor "Apple" for product "Ipados" and version " < 14.5"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 14.5 Search vendor "Apple" for product "Iphone Os" and version " < 14.5"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 11.0 < 11.3 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.3"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 14.5 Search vendor "Apple" for product "Tvos" and version " < 14.5"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 7.4 Search vendor "Apple" for product "Watchos" and version " < 7.4"		-		Affected