CVE-2026-71447
Received Received - Intake

Stored XSS in AIL Project Translation Controls

Vulnerability report for CVE-2026-71447, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-06

Last updated on: 2026-08-06

Assigner: 5a6e4751-2f3f-4070-9419-94fb35b644e8

Description

AIL Project contains a stored cross-site scripting vulnerability in the translation controls displayed for chat messages and forum posts. The affected templates inserted message and post identifiers directly into inline JavaScript onclick handlers: onclick="translateMessageToPreferredLanguage('{{ message['id'] }}', '{{ mess_id_escape }}', this)" and: onclick="translatePostToPreferredLanguage('{{ post['id'] }}', '{{ post_id_escape }}', this)" These values were HTML-template escaped but were not safely encoded for use as JavaScript string literals inside an HTML attribute. A specially crafted identifier containing quotation marks, escape characters, or other JavaScript syntax could therefore terminate the expected string argument and inject arbitrary JavaScript into the event handler. Because the affected values are associated with indexed chat messages or forum posts, a malicious value may remain stored by AIL and be rendered whenever an analyst accesses the corresponding chat or forum explorer view. Successful exploitation requires the victim to click the affected Translate to preferred language button. The injected code would then execute in the victim’s browser under the security origin of the AIL instance.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-08-06
Last Modified
2026-08-06
Generated
2026-08-07
AI Q&A
2026-08-07
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in the AIL Project. It occurs in translation controls for chat messages and forum posts where message or post identifiers are inserted directly into JavaScript onclick handlers without proper encoding. This allows malicious identifiers containing JavaScript syntax to inject and execute arbitrary code when the translate button is clicked.

Detection Guidance

Check AIL Project's chat and forum interfaces for stored messages or posts containing JavaScript event handlers like onclick with translateMessageToPreferredLanguage or translatePostToPreferredLanguage functions. Inspect HTML source for improperly escaped identifiers in these handlers.

Impact Analysis

An attacker could exploit this to run malicious scripts in your browser when you interact with a compromised chat message or forum post. This could lead to session hijacking, data theft, or unauthorized actions on your behalf within the AIL instance.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized script execution in user browsers. Stored XSS may lead to data breaches or unauthorized access to sensitive information, violating confidentiality requirements under these regulations.

Mitigation Strategies

Update AIL Project to the latest version where identifiers are properly encoded for JavaScript string literals. Review stored chat messages and forum posts for malicious payloads. Implement input validation for message and post identifiers to prevent JavaScript injection.

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