VulnSocial

CVE-2026-40567Disclosure

LOWCVSS 5.8 · MEDIUM

Signal is active with 2 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

FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated attacker can inject arbitrary HTML into outgoing emails generated by FreeScout by sending an email with a crafted From display name. The name is stored in the database without sanitization and rendered unescaped into outgoing reply emails via the `{%customer.fullName%}` signature variable. This allows embedding phishing links, tracking pixels, and spoofed content inside legitimate support emails sent from the organization's address. Version 1.8.213 fixes the issue.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-116

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-04-21: 2Technical Details · 2026-04-21: 204-21
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-40567 FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated attacker can inject arbitrary HTML into outgoing emails gen… https://www.cve.org/CVERecord?id=CVE-2026-40567

    Post summary

    The statement announces a code injection flaw (unauthenticated HTML injection into outgoing emails) in FreeScout versions before 1.8.213, but provides no PoC, exploit, patch, or evidence of active exploitation.

    00010183
    57.2K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-40567 FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, an unauthenticated attacker can inject arbitrary HTML into outgoing emails gen… https://www.cve.org/CVERecord?id=CVE-2026-40567 ----- Traducción: CVE-2026-40567 Fre… http://infoflow.cloud`

    Post summary

    CVE-2026-40567 allows unauthenticated users to inject arbitrary HTML into outgoing emails in FreeScout versions before 1.8.213.

    0000022
    72 followersView on X

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