CVE-2026-42028 — NovaGallery Path Traversal
CVE-2026-42028 — novaGallery is a php image gallery. Prior to version 2.1.1, a path traversal vulnerability has been identified in novaGallery. This allows unauthenticated users to read image files outside the intended gallery root directory. This issue has been patched in version 2.1.1.
What This Means For You
- If your environment is affected by CWE-22, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-42028 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 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.
Path Traversal in NovaGallery (CVE-2026-42028) - Free Tier
Sigma YAML — free preview
title: Path Traversal in NovaGallery (CVE-2026-42028) - Free Tier
id: scw-2026-05-08-ai-1
status: experimental
level: high
description: |
Detects attempts to exploit the path traversal vulnerability (CVE-2026-42028) in NovaGallery by looking for requests containing '/../../' within the URI and a 'file=' parameter in the query string. This indicates an attempt to access files outside the intended gallery directory.
author: SCW Feed Engine (AI-generated)
date: 2026-05-08
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-42028/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/../../'
cs-uri-query|contains:
- 'file='
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-42028 | vulnerability | CVE-2026-42028 |
| CWE-22 | weakness | CWE-22 |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 08, 2026 at 20:16 UTC |
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