TI-2026-86035 Aliases CVE-2026-62855

FreeScout Path Traversal in App Logs Viewer Exposes Local Files

MEDIUM 54CWE-23Published 2026-11-06 · Updated 2026-11-06

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: High
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-23 and the CVSS impact.

Summary

FreeScout versions before 1.8.225 have a path traversal flaw (CWE-23) in the App Logs viewer. An administrator who also knows the APP_KEY can submit Laravel-encrypted folder and file parameters containing traversal segments, because the path is validated only as a raw string and the filesystem normalizes it outside storage/logs. Requests to the /app-logs/app route can then read local files available to the PHP worker, including environment files, source files, credentials, tokens and operating system files. The CVSS 3.1 base score is 4.4 (MEDIUM); CISA has not added the issue to KEV, and the proof-of-concept exploitation status is poc.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.225, the administrator-only App Logs viewer accepts Laravel-encrypted folder and file parameters whose constructed path is checked only as a raw string. An administrator who also knows the APP_KEY can supply traversal segments that the filesystem normalizes outside storage/logs. The /app-logs/app route can then read local files accessible to the PHP worker, including environment files, source files, credentials, tokens, and operating-system files. This issue is fixed in version 1.8.225.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00462 40th percentileScored 2026-11-07

Fix Fixed freescout (freescout-help-desk): 1.8.225

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
freescout-help-desk	freescout	before 1.8.225	1.8.225	Patch available	CNA

freescout Vendorfreescout-help-desk Affected before 1.8.225 Fixed in 1.8.225 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:freescout:freescout::::::::	—	—	freescout-help-desk

cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:* Versions — — ·freescout-help-desk

Remediation

Upgrade FreeScout to version 1.8.225, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Fix · CNA freescout (freescout-help-desk) Fixed in 1.8.225

Timeline

2026-11-06 Threatist record created from CVE-2026-62855
2026-11-06 CISA SSVC decision points changed
2026-11-06 Priority changed: LOW → MEDIUM

References

Other 3

TI-2026-38652 FreeScout vulnerable to anonymous account takeover via /user-setup empty invite_hash on MySQL CVSS 3.1CRITICAL 9.4
TI-2026-22019 FreeScout's Predictable Authentication Token Enables Account Takeover CVSS 3.1CRITICAL 9.8
TI-2026-30304 FreeScout's user invitation hash never expires: permanent unauthenticated account takeover if invite link leaks CVSS 3.1CRITICAL 9.1
TI-2026-29249 FreeScout has Authentication Bypass and Information Disclosure in SystemController via /system/cron CVSS 4.0HIGH 8.9
TI-2026-29247 FreeScout has Predictable Attachment Token that Allows Unauthenticated Private File Download via Brute Force CVSS 4.0HIGH 8.8
TI-2026-38648 FreeScout Vulnerable to Unauthenticated Conversation Thread Injection via HMAC Length Bypass in FetchEmails CVSS 3.1HIGH 8.6

See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences