Security readout for executives and security teams
Plain-English summary
CVE-2024-11182 is a stored cross-site scripting issue in MDaemon Email Server webmail. A malicious email can cause JavaScript to run in a user’s browser when viewed. Although the CVSS score is medium, CISA lists it in KEV, so treat exposed or unpatched MDaemon deployments as urgent.
Executive priority
Prioritize remediation because KEV status means exploitation is confirmed by CISA. The business risk is user-session compromise through email viewing, not server takeover based on the supplied evidence. Patch validation should be tracked as an urgent vulnerability management item.
Technical view
MDaemon Email Server versions before 24.5.1c are affected by CWE-79 stored XSS. The source describes JavaScript embedded through an HTML email image tag, executing in the webmail user’s browser context. The CVSS v4.0 score is 5.3, with network attack vector, low complexity, no privileges required, and user interaction required.
Likely exposure
Organizations using MDaemon Email Server webmail on versions before 24.5.1c are the relevant exposure population. The source bundle does not identify affected hosted services, appliances, or downstream products beyond MDaemon Email Server.
Exploitation context
Active exploitation is supported by the CISA KEV reference in the source bundle. The vulnerability requires a user to interact with or view malicious email content through webmail. No public exploit details, campaign attribution, or exploitation volume are provided in the supplied sources.
Researcher notes
Evidence supports stored XSS in webmail with user interaction required. Scope should stay limited to MDaemon Email Server before 24.5.1c unless additional vendor evidence expands affected products. The supplied sources do not provide exploit telemetry, indicators, or detailed remediation beyond version boundary and references.
Mitigation direction
- Upgrade MDaemon Email Server to version 24.5.1c or later.
- Prioritize internet-facing or heavily used webmail deployments first.
- Review vendor release notes and guidance before making production changes.
- Increase monitoring for suspicious webmail behavior and unexpected script execution indicators.
Validation and detection
- Inventory MDaemon Email Server deployments and record exact versions.
- Confirm whether any deployment is earlier than 24.5.1c.
- Verify webmail exposure and whether users access HTML email through it.
- Check CISA KEV tracking for operational deadlines and status.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-11182 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (4.0)
- Known Exploited
- Yes
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- https://files.mdaemon.com/mdaemon/beta/RelNotes_en.htmlCVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-11182CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.