October 13, 2026

CVE Watchtower

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CVE-2025-3929NVD

Vulnerability Summary

An XSS issue was discovered in MDaemon Email Server version 25.0.1 and below. An attacker can send a specially crafted 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, and access user data.
Severity Level
MEDIUM(5.3)
Published Date
Apr 29, 2025
Last Modified
May 12, 2025
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
Data Pending
Root Weakness (CWE)
CWE-79: Cross-site Scripting (XSS) ↗
The software does not neutralize user-controllable input before it is placed in output that is used as a web page.
CVSS v4.0 Base Metrics — Score 5.3 (MEDIUM)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionPassive
Confidentiality (Vulnerable System)Low
Integrity (Vulnerable System)Low
Availability (Vulnerable System)None
Confidentiality (Subsequent System)Low
Integrity (Subsequent System)Low
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 6.1 (MEDIUM)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Mdaemon Email Server >= 20.0.0 and < 20.0.9
  • Mdaemon Email Server >= 21.0.0 and < 21.0.8
  • Mdaemon Email Server >= 21.5.0 and < 21.5.6
  • Mdaemon Email Server >= 22.0.0 and < 22.0.7
  • Mdaemon Email Server >= 23.0.0 and < 23.0.4
  • Mdaemon Email Server >= 23.5.0 and < 23.5.5
  • Mdaemon Email Server >= 24.0.0 and < 24.0.4
  • Mdaemon Email Server >= 24.5.0 and < 24.5.3
  • Mdaemon Email Server >= 25.0.0 and < 25.0.2
Patched Versions
  • Mdaemon Email Server 20.0.9
  • Mdaemon Email Server 21.0.8
  • Mdaemon Email Server 21.5.6
  • Mdaemon Email Server 22.0.7
  • Mdaemon Email Server 23.0.4
  • Mdaemon Email Server 23.5.5
  • Mdaemon Email Server 24.0.4
  • Mdaemon Email Server 24.5.3
  • Mdaemon Email Server 25.0.2
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🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References