CVE-2025-69771
Received Received - Intake
Arbitrary File Upload in asbplayer Subtitle Loader Enables Code Execution

Publication date: 2026-02-25

Last updated on: 2026-03-20

Assigner: MITRE

Description
Cross-Site Scripting (XSS) vulnerability in the subtitle loading function of the asbplayer Chrome Extension version 1.14.0 allows attackers to execute arbitrary JavaScript in the context of the active streaming platform via a crafted .srt subtitle file. Because the script executes within the same-site context, it can bypass cross-origin restrictions, leading to unauthorized same-site API requests and session data exfiltration.
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Meta Information
Published
2026-02-25
Last Modified
2026-03-20
Generated
2026-06-16
AI Q&A
2026-02-25
EPSS Evaluated
2026-06-14
NVD
CVE-2025-69771
EUVD
EUVD-2025-208115
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
killergerbah asbplayer to 1.13.0 (inc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
Attack-Flow Graph
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Executive Summary

[{'type': 'paragraph', 'content': 'CVE-2025-69771 is a Cross-Site Scripting (XSS) vulnerability found in the asbplayer Chrome extension, specifically affecting versions up to and including 1.13.0.'}, {'type': 'paragraph', 'content': 'The vulnerability occurs in the subtitle loading feature of the extension, where the parsing function improperly handles subtitle text from uploaded .srt files.'}, {'type': 'paragraph', 'content': "Attackers can craft .srt subtitle files containing embedded JavaScript payloads that are not properly sanitized or escaped, causing the scripts to execute within the extension's context."}] [2]

Impact Analysis

This XSS flaw enables attackers to perform actions within the same origin as the streaming service where asbplayer operates, such as Netflix.

  • Session hijacking
  • Unauthorized API requests
  • Leakage of sensitive user information
Compliance Impact

I don't know

Detection Guidance

This vulnerability involves the asbplayer Chrome extension improperly handling crafted .srt subtitle files that contain embedded JavaScript payloads. Detection would involve monitoring for suspicious or unexpected subtitle file uploads or analyzing the content of .srt files for embedded scripts.

Since the vulnerability is related to Cross-Site Scripting (XSS) in subtitle files, one approach is to inspect subtitle files for suspicious tags or scripts before they are loaded by the extension.

No specific detection commands or tools are provided in the available resources.

Mitigation Strategies

Immediate mitigation steps include avoiding the use of the vulnerable asbplayer Chrome extension version 1.13.0 or earlier, especially avoiding loading subtitle files from untrusted sources.

Developers are recommended to implement strict escaping of HTML tags before inserting subtitle content into the DOM or to use robust sanitization libraries such as DOMPurify to filter out malicious input.

Since no patch or response has been received as of the last update, users should consider disabling or uninstalling the extension until a fix is released.

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