How severe is CVE-2024-11182?

No CVSS score has been assigned to CVE-2024-11182 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2024-11182?

Affected package information for CVE-2024-11182 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2024-11182?

No fixed release is recorded for CVE-2024-11182 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

How do I detect CVE-2024-11182 in my code and dependencies?

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`).

How do I mitigate CVE-2024-11182 if there is no patch (or I can't update yet)?

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.

Is CVE-2024-11182 actively exploited in the wild?

No public exploit code has been indexed for CVE-2024-11182 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2024-11182?

CVE-2024-11182 has an EPSS (Exploit Prediction Scoring System) score of 31.4%, placing it in the 98th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

Is CVE-2024-11182 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2024-11182 (MDaemon Email Server Cross-Site Scripting (XSS) Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2025-05-19. CISA required all US federal civilian agencies to remediate this vulnerability by 2025-06-09. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2024-11182?

CVE-2024-11182 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2024-11182 published, and has it been updated?

CVE-2024-11182 was published on November 15, 2024 and was last updated on October 21, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV · ACTIVELY EXPLOITED

CVE-2024-11182

CVE-2024-11182 is a Cross-site Scripting (XSS) vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2025-05-19) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

An XSS issue was discovered in MDaemon Email Server before version 24.5.1c. An attacker can send an HTML e-mail message with JavaScript in an img tag. This could allow a remote…

Published

Nov 15, 2024

Updated

Oct 21, 2025

Affected

1 product

Patched

See advisory

Exploits

None indexed

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 2025-05-19. Federal agencies were required to remediate by 2025-06-09.
A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2024-11182.

EPSS Exploitation Probability

via FIRST.org ↗

31.4%probability of exploitation in next 30 days

Moderate Risk+13.76%

Lower risk than most CVEs98th percentile — riskier than 98% of all scored CVEsHighest risk

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

Description

An XSS issue was discovered in

MDaemon Email Server before version 24.5.1c. An attacker can send an HTML e-mail message with JavaScript in an img tag. This could allow a remote attacker

to load arbitrary JavaScript code in the context of a webmail user's browser window.

Affected Products

1 product · 1 configurations

Application

mdaemonmdaemon

< 24.5.1

range

Detection & mitigation playbook

Vulnerability

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`).
Remediation status
No fixed release is recorded for CVE-2024-11182 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
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.

Frequently Asked Questions

An XSS issue was discovered in MDaemon Email Server before version 24.5.1c. An attacker can send an HTML e-mail message with JavaScript in an img tag. This could allow a remote attacker to load arbitrary JavaScript code in the context of a webmail user's browser window.

O3 Security · Impact-Aware SCA

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