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Freescout CVE-2024-34697

MEDIUM
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)
2024-05-14 security-advisories@github.com
6.1
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.1 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

1
CVE Published
May 14, 2024 - 15:39 nvd
MEDIUM 6.1

DescriptionNVD

FreeScout is a free, self-hosted help desk and shared mailbox. A stored HTML Injection vulnerability has been identified in the Email Receival Module of the Freescout Application. The vulnerability allows attackers to inject malicious HTML content into emails sent to the application's mailbox. This vulnerability arises from improper handling of HTML content within incoming emails, allowing attackers to embed malicious HTML code in the context of the application's domain. Unauthenticated attackers can exploit this vulnerability to inject malicious HTML content into emails. This could lead to various attacks such as form hijacking, application defacement, or data exfiltration via CSS injection. Although unauthenticated attackers are limited to HTML injection, the consequences can still be severe. Version 1.8.139 implements strict input validation and sanitization mechanisms to ensure that any HTML content received via emails is properly sanitized to prevent malicious HTML injections.

AnalysisAI

FreeScout is a free, self-hosted help desk and shared mailbox. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-74. FreeScout is a free, self-hosted help desk and shared mailbox. A stored HTML Injection vulnerability has been identified in the Email Receival Module of the Freescout Application. The vulnerability allows attackers to inject malicious HTML content into emails sent to the application's mailbox. This vulnerability arises from improper handling of HTML content within incoming emails, allowing attackers to embed malicious HTML code in the context of the application's domain. Unauthenticated attackers can exploit this vulnerability to inject malicious HTML content into emails. This could lead to various attacks such as form hijacking, application defacement, or data exfiltration via CSS injection. Although unauthenticated attackers are limited to HTML injection, the consequences can still be severe. Version 1.8.139 implements strict input validation and sanitization mechanisms to ensure that any HTML content received via emails is properly sanitized to prevent malicious HTML injections. Affected products include: Freescout. Version information: Version 1.8.139.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

CVE-2026-28289 CRITICAL POC
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File upload bypass in FreeScout 1.8.206 — patch bypass for CVE-2026-27636. PoC and patch available. CVSS 10.0.

CVE-2026-27636 HIGH POC
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Remote code execution in FreeScout prior to version 1.8.206 allows authenticated users to upload `.htaccess` files that

CVE-2026-27637 CRITICAL POC
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CVE-2024-29185 CRITICAL POC
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CVE-2024-29184 HIGH POC
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FreeScout is a self-hosted help desk and shared mailbox. Rated high severity (CVSS 8.0), this vulnerability is remotely

CVE-2024-28186 HIGH POC
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FreeScout is an open source help desk and shared inbox built with PHP. Rated high severity (CVSS 7.1), this vulnerabilit

CVE-2024-34698 MEDIUM POC
6.3 May 14

FreeScout is a free, self-hosted help desk and shared mailbox. Rated medium severity (CVSS 6.3), this vulnerability is r

CVE-2026-32754 CRITICAL
9.3 Mar 19

A stored cross-site scripting (XSS) vulnerability exists in FreeScout help desk software versions 1.8.208 and below, whe

CVE-2026-41193 CRITICAL
9.1 Apr 21

Arbitrary file write in FreeScout (prior to 1.8.215) allows authenticated administrators to achieve remote code executio

CVE-2026-41902 CRITICAL
9.1 May 07

Unauthenticated account takeover in FreeScout versions prior to 1.8.217 allows remote attackers to gain permanent access

CVE-2026-40498 HIGH
8.9 Apr 21

Unauthenticated remote attackers can access administrative diagnostic endpoints in FreeScout versions prior to 1.8.213,

CVE-2026-40496 HIGH
8.8 Apr 21

Insecure token generation in FreeScout <1.8.213 allows unauthenticated remote attackers to download private email attach

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CVE-2024-34697 vulnerability details – vuln.today

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