CVE-2026-7234: Path Traversal Flaw in BrowserOperator Core Exposes Users
The National Vulnerability Database has identified CVE-2026-7234, a critical path traversal vulnerability affecting browser-operator-core versions up to 0.6.0. This flaw resides in the startsWith function within scripts/component_server/server.js. Attackers can exploit this by manipulating the request.url argument to traverse directories on a compromised system, potentially accessing sensitive files or executing arbitrary code remotely. The public availability of exploit code significantly elevates the risk.
The National Vulnerability Database notes that the project maintainers were notified but have not yet responded, leaving a window for exploitation. With a CVSS score of 7.3 (HIGH), this vulnerability demands immediate attention from defenders. Organizations utilizing browser-operator-core should prioritize patching or implementing compensating controls to mitigate the risk of unauthorized access and data compromise.
What This Means For You
- If your organization uses browser-operator-core, you must immediately check your deployed versions. If you are running 0.6.0 or earlier, implement an emergency patch or consider disabling the affected component until it can be secured. Audit logs for any suspicious URL patterns or unauthorized file access attempts that could indicate exploitation.
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.
CVE-2026-7234: BrowserOperator Path Traversal Attempt
title: CVE-2026-7234: BrowserOperator Path Traversal Attempt
id: scw-2026-04-28-ai-1
status: experimental
level: high
description: |
Detects attempts to exploit CVE-2026-7234 by looking for path traversal sequences ('../') within the URI or query parameters of requests targeting the BrowserOperator component. This specific pattern is indicative of an attempt to leverage the vulnerability in scripts/component_server/server.js.
author: SCW Feed Engine (AI-generated)
date: 2026-04-28
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-7234/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '../'
cs-uri-query|contains:
- '../'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-7234 | Path Traversal | BrowserOperator browser-operator-core up to version 0.6.0 |
| CVE-2026-7234 | Path Traversal | Vulnerable function: startsWith in scripts/component_server/server.js |
| CVE-2026-7234 | Path Traversal | Manipulation of argument: request.url |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 28, 2026 at 10:16 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.
Believe this infringes your rights? Submit a takedown request.
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