VulnSocial

CVE-2026-40590Disclosure

LOWCVSS 4.3 · 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 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /customers/ajax with action=create. Under limited visibility, the endpoint drops unique-email validation. If the supplied email already belongs to a hidden customer, Customer::create() reuses that hidden customer object and fills empty profile fields from attacker-controlled input. Version 1.8.214 fixes the vulnerability.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-639

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 · 2026-04-27: 2Technical Details · 2026-04-27: 204-27
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-40590 FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /cus… https://www.cve.org/CVERecord?id=CVE-2026-40590

    Post summary

    The text announces CVE-2026-40590, noting that before version 1.8.214 the Change Customer modal in FreeScout permits creating new customers through a specific POST endpoint, thereby disclosing a vulnerability.

    00010169
    57.3K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-40590 FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /cus… https://www.cve.org/CVERecord?id=CVE-2026-40590 ----- Traducción: CVE-2026-40590 Fre… http://infoflow.cloud`

    Post summary

    The text announces CVE‑2026‑40590, describes how the vulnerability is exposed in FreeScout, and provides a link to the CVE record, with no PoC, exploit code, or mitigation discussed.

    0000044
    72 followersView on X

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