jotty·page Path Traversal Vulnerability (CVE-2026-42564) Exposes Data
The National Vulnerability Database has disclosed CVE-2026-42564, a high-severity (CVSS 8.2) unauthenticated path traversal vulnerability in jotty·page, a self-hosted application for checklists and notes. This flaw affects versions prior to 1.22.0. The vulnerability resides in the /api/app-icons/[filename] endpoint, where the filename parameter is incorporated into a filesystem path without proper validation.
This critical oversight allows an unauthenticated attacker to read arbitrary files outside the intended data/uploads/app-icons/ directory. The impact is significant: while the primary consequence is high-confidentiality compromise (CWE-200), the ability to read arbitrary files could expose sensitive configuration, user data, or even credentials, setting the stage for further exploitation or privilege escalation.
Defenders must prioritize patching. The National Vulnerability Database confirms this issue is resolved in jotty·page version 1.22.0. Organizations utilizing jotty·page should immediately upgrade to the fixed version to mitigate the risk of data exfiltration and unauthorized access.
What This Means For You
- If your organization uses jotty·page, you need to check your version immediately. An unauthenticated path traversal means an attacker can simply hit your server and start siphoning off sensitive files. This isn't theoretical; it's a direct path to data compromise. Patch to 1.22.0 or later, and audit logs for `/api/app-icons/` access for suspicious activity.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-42564 - jotty·page Path Traversal to Read Sensitive Files
title: CVE-2026-42564 - jotty·page Path Traversal to Read Sensitive Files
id: scw-2026-05-11-ai-1
status: experimental
level: high
description: |
Detects attempts to exploit the CVE-2026-42564 path traversal vulnerability in jotty·page. The rule specifically looks for GET requests to the /api/app-icons/ endpoint with a URI query containing '../', indicating an attempt to access files outside the intended directory.
author: SCW Feed Engine (AI-generated)
date: 2026-05-11
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-42564/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|startswith:
- '/api/app-icons/'
cs-uri-query|contains:
- '../'
cs-method:
- 'GET'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-42564 | Path Traversal | jotty.page < 1.22.0 |
| CVE-2026-42564 | Path Traversal | Vulnerable endpoint: /api/app-icons/[filename] |
| CVE-2026-42564 | Path Traversal | Affected component: filename route parameter |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 12, 2026 at 01:22 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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