CVE-2024-44309Known exploitationNetwork attack vector

Cross-site scripting via incorrect cookie state handling

Published Nov 19, 2024 · Updated Apr 2, 2026

Cross-site scripting in WebKit in Apple Safari and operating systems allows remote attackers to execute script via crafted web content. WebKit cookie management applies incorrect state handling to malicious content, but Apple has not disclosed the affected function or state transition. Successful exploitation requires a user to process attacker-controlled web content and can cross site boundaries in the browser context.

CVSS severity6.3
Medium
EPSS probability22.59%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in WebKit in Apple Safari and operating systems allows remote attackers to execute script via crafted web content. WebKit cookie management applies incorrect state handling to malicious content, but Apple has not disclosed the affected function or state transition. Successful exploitation requires a user to process attacker-controlled web content and can cross site boundaries in the browser context.

The record

CVE
CVE-2024-44309
Published
Nov 19, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS
Classifications
CWE-79, T1203, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 2024Exploitation reportedCISA Known Exploited Vulnerabilities catalog entry
  3. Apr 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <17.7
  2. Affected versionversion=18.0 <18.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · iOSversion=0 <17.7; version=18.0 <18.1
Apple · iOS and iPadOSversion=0 <17.7.2; version=0 <18.1.1
Apple · visionOSversion=0 <2.1; version=0 <2.1.1
Apple · Safariversion=0 <18.1; version=0 <18.1.1
Apple · macOSversion=0 <15.1; version=0 <15.1.1
Apple · iPadOSversion=0 <17.7; version=18.0 <18.1

Published CVSS scores

6.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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