Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2024-44309

Safari Cross-Site Scripting

Apple / Safari · affected before 18.1

Watch CVE-2024-44309 Browse KEV feed
Severity
CVSS 6.3 · Medium
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
22.6%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2024-44309 is an unauthenticated vulnerability affecting Apple Safari and 3 other products. A cookie management issue was addressed with improved state management. This issue is fixed in Safari 18.1.1, iOS 17.7.2...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV.

Who is affected?

Apple / Safari affected before 18.1.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

A cookie management issue was addressed with improved state management

A cookie management issue was addressed with improved state management. This issue is fixed in Safari 18.1.1, iOS 17.7.2 and iPadOS 17.7.2, iOS 18.1.1 and iPadOS 18.1.1, macOS Sequoia 15.1.1, visionOS 2.1.1.

Processing maliciously crafted web content may lead to a cross site scripting attack. Apple is aware of a report that this issue may have been actively exploited on Intel-based Mac systems.

apple Affected
safari
Before 18.1
apple Affected
macos
Before 15.1
apple Affected
visionos
Before 2.1
apple Affected
iphone_os
Before 17.7 Before 18.1
apple Affected
ipad_os
Before 17.7 Before 18.1
Apple Affected
Safari
Before 18.1.1
Apple Affected
iOS and iPadOS
Before 17.7.2 Before 18.1.1
Apple Affected
macOS
Before 15.1.1
Apple Affected
visionOS
Before 2.1.1
Published
19 Nov 2024
Exploitation Reported
21 Nov 2024
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
Required

Tags

macos ios nessus_scanner cisa

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 21 Nov 2024

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

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Source Added
CISA First 2024-11-21 00:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nessus https://www.tenable.com/plugins/nessus/237469 02 Jun 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

6.3 Medium

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

22.6%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

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

Recent mention · Google Threat Intelligence

Written by: Casey Charrier, James Sadowski, Clement Lecigne, Vlad Stolyarov Executive Summary Google Threat Intelligence Group (GTIG) tracked 75...

Written by: Casey Charrier, James Sadowski, Clement Lecigne, Vlad Stolyarov Executive Summary Google Threat Intelligence Group (GTIG) tracked 75 zero-day vulnerabilities exploited in the wild in 2024, a decrease from the number we identified in 2023 (98 vulnerabilities), but...

Read full advisory

Timeline

From disclosure to observed exploitation

  1. 09:26 UTC

    Nessus plugin available

    Scanner coverage available

  2. 00:00 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  3. 23:43 UTC

    CVE published

    Vulnerability disclosed publicly

  4. 21:45 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2024-44309

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2024-44309",
  "confidence": "Confirmed",
  "cvss_score": 6.3,
  "cvss_estimated": false,
  "epss_score": 0.2259,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}