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CISA KEV · ACTIVELY EXPLOITED
MEDIUM severity

CVE-2024-44309

MEDIUM

CVE-2024-44309 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2024-11-21) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

Published
Updated
Affected
6 products
Patched
See advisory
Exploits
3 known
Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2024-11-21. Federal agencies were required to remediate by 2024-12-12.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2024-44309.

EPSS Exploitation Probability

via FIRST.org ↗
22.6%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs98th percentile — riskier than 98% of all scored CVEsHighest risk
0.00%9.72%19.4%29.2%1.2%22.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2024-44309 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 395,249 CVEs with a current EPSS score, this one falls in the 10–50% band (highlighted). Counts from FIRST.org, log-scaled.

Description

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, macOS Sequoia 15.1.1, iOS 18.1.1 and iPadOS 18.1.1, 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.

Affected Products

6 products · 8 configurations
OS
ipadosapple
≥ 18.0 && < 18.1.1
range
OS
iphone osapple
≥ 18.0 && < 18.1.1
range
OS
macosapple
≥ 15.0 && < 15.1.1
range
Application
safariapple
< 18.1.1
range
OS
visionosapple
< 2.1.1
range
OS
debian linuxdebian
1 version
11.0
Exploits & PoCs
3

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2024-44309 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

This vulnerability is rated as IMPORTANT severity due to a cookie management issue that allows an attacker to inject maliciously crafted web content, potentially leading to a cross-site scripting (XSS) attack, this flaw occurs because of improper state management during cookie handling, which could allow unauthorized…

Workaround published by Red Hat
Do not process or load untrusted web content with WebKitGTK. In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome-shell, shotwell, sushi and yelp. This vulnerability can only be exploited when these packages are installed in the system and being used via a graphical interface to process untrusted web content, via GNOME for example. In gnome-shell, the vulnerability can be exploited by an attacker from the local network without user interaction. To mitigate this vulnerability, consider removing these packages. Note that some of these packages are required by GNOME, removing them…
Source: Red Hat security advisory for CVE-2024-44309 (CC BY 4.0)
ProductFixed inAdvisory
Red Hat Enterprise Linux 7 Extended Lifecycle Supportwebkitgtk4-0:2.48.3-2.el7_9RHSA-2025:10364
Red Hat Enterprise Linux 8webkit2gtk3-0:2.46.3-2.el8_10RHSA-2024:10481
Red Hat Enterprise Linux 8.2 Advanced Update Supportwebkit2gtk3-0:2.46.3-2.el8_2RHSA-2024:10480
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportwebkit2gtk3-0:2.46.3-2.el8_4RHSA-2024:10501
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportwebkit2gtk3-0:2.46.3-2.el8_6RHSA-2024:10489
Red Hat Enterprise Linux 8.8 Extended Update Supportwebkit2gtk3-0:2.46.3-2.el8_8RHSA-2024:10492
Red Hat Enterprise Linux 9webkit2gtk3-0:2.46.3-2.el9_5RHSA-2024:10472
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutionswebkit2gtk3-0:2.46.3-2.el9_0RHSA-2024:10496
UbuntuMEDIUM

Frequently Asked Questions

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, macOS Sequoia 15.1.1, iOS 18.1.1 and iPadOS 18.1.1, 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.
O3 Security · Impact-Aware SCA

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Actively Exploited: CVE-2024-44309: XSS (Medium 6.1)