CVE-2025-3929General(mdaemon / email_server)

LOWCVSS 6.1 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • email_server

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • General: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
email_server

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-07-24: 107-24
Signal classification1 categories
General
1100.0%
Referenced assets2 URLs
Full discourse1 post
  • blackorbird@blackorbird
    General

    TA488(Void Blizzard、Laundry Bear) Targets Zimbra Mailservers with Half-Click Exploits https://www.proofpoint.com/us/blog/threat-insight/ta488-targets-zimbra-mailservers-half-click-exploits Operation RoundPress Rolls on with More Half-Click Webmail Zero-Days from TA458 CVE-2025-27915: Zimbra (zero-day) CVE-2025-3929: mDaemon (zero-day) CVE-2023-43770: Roundcube (n-day) CVE-2024-42009: Roundcube (n-day) CVE-2026- 8496: SOGo (zero-day) https://www.proofpoint.com/us/blog/threat-insight/ta458-roundpress-exploits

    Post summary

    The passage lists several CVE identifiers described as zero- or non-zero day vulnerabilities but provides no detailed technical, exploit, or mitigation information.

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CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appmdaemonemail_server---

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