CVE-2026-62852

FreeScout: Missing Authorization and Exposure of Sensitive Information to an Unauthorized Actor and Authorization Bypass Through User-Controlled Key

CVSS score

6.5

EPSS probability

%0.2

Risk score

0.0

Published

1 d ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2026-62852 FreeScout Authorization Bypass and Information Disclosure Vulnerability

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

CVE-2026-62852 in FreeScout allows authenticated users to access other conversations and compromise sensitive data due to missing authorization checks in RealtimeConvNewThread.

Why does it matter?

This vulnerability allows restricted users to read confidential information such as internal notes, replies, and attachments belonging to other conversations in the same mailbox, resulting in a privacy breach.

What should be done?

Follow the vendor advisory to review updates
Upgrade to version 1.8.226 or later
Audit mailbox and user access permissions

Chain of evidence and sources2 verified claims

FreeScout 1.8.226 öncesi sürümlerde RealtimeConvNewThread konuşma düzeyindeki kısıtlamaları uygulamaz.

S0 · daybreach-canonical S1 · cvelist

Sınırlı kimliği doğrulanmış bir kullanıcı, tahmin edilebilir Polycast kanallarına abone olarak hassas verileri ele geçirebilir.

S0 · daybreach-canonical S1 · cvelist

Show the technical text from the sources

FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.226, RealtimeConvNewThread checks only general mailbox access and does not apply the conversation-level restriction for users configured to see only assigned conversations. A restricted authenticated user can subscribe to predictable conv.<conversation_id> Polycast channels for other conversations in the same mailbox. New event payloads can expose complete replies, internal notes, recipient addresses, conversation state, assignee data, attachment names, and attachment URLs containing valid download tokens. This issue is fixed in version 1.8.226.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE: CWE-200, CWE-639, CWE-862

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-62852 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	freescout-help-desk	freescout	View

Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
6.5	CVSS V31	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	NVD
6.5	CVSS V3_1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	CVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-62852 is associated with the following CWEs:

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-639: Common Weakness Enumeration Entry CWE-639 CWE-862: Common Weakness Enumeration Entry CWE-862

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-62852 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsLow

UserGerekmiyor

Official Sources and Advisories

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-w668-wq26-6c94vendor-advisory https://github.com/freescout-help-desk/freescout/commit/e47a54a5af6c57181ef99711326f5886e940b776vendor-advisory https://github.com/freescout-help-desk/freescout/releases/tag/1.8.226vendor-advisory

CVSS Vector Radar Chart

6.5 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow privileges

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)None

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

freescout-help-desk

Weakness Type (CWE & CAPEC)

CWE-200 CWE-639 CWE-862