CVE-2024-11182: MDaemon Email Server Cross-Site Scripting (XSS) Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on , 185 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 33.3%
EPSS score, percentile 98.4 of all scored records
- How severe?
- 5.3 Medium
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA deadline . Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- 24.5.0 and earlier
Unaffected 24.5.1
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: .
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://files.mdaemon.com/mdaemon/beta/RelNotes_en.html
- https://mdaemon.com/pages/downloads-critical-updates
- https://nvd.nist.gov/vuln/detail/CVE-2024-11182
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | 24.5.0 and earlier |
| Unaffected | 24.5.1 |
Versions not listed are: unaffected.
Versions the record lists as unaffected: 24.5.1.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
About this vulnerability
MDaemon Email Server contains a cross-site scripting (XSS) vulnerability that allows a remote attacker to load arbitrary JavaScript code via an HTML e-mail message.
Summary: CISA's KEV catalog, as of .
- CISA added CVE-2024-11182 to its Known Exploited Vulnerabilities (KEV) catalog on 19 May 2025.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 9 Jun 2025.
- The CVE record was published on 15 Nov 2024, 185 days before it was added to KEV.
- The CVE record carries a CVSS v4.0 base score of 5.3 (Medium), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 33.3% (percentile 98.4), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of . About the data.
Description
Stored XSS vulnerability in MDaemon Email Server
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.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
Weakness
- CWE-79: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Attack patterns (CAPEC)
- CAPEC-592: Stored XSS
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| Added to CISA KEV | |
| CISA due date for the required action | |
| CVE record last updated |