CVE-2025-12460
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-31

Last updated on: 2025-11-04

Assigner: ESET

Description
An XSS issue was discovered in Afterlogic Aurora webmail version 9.8.3 and below. An attacker can send a specially crafted HTML e-mail message with JavaScript in an img HTML tag. This could allow a remote attacker to load arbitrary JavaScript code in the context of a webmail user's browser window, and access user data.
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Meta Information
Published
2025-10-31
Last Modified
2025-11-04
Generated
2026-06-16
AI Q&A
2025-11-01
EPSS Evaluated
2026-06-15
NVD
CVE-2025-12460
EUVD
EUVD-2025-37359
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
afterlogic aurora_corporate *
afterlogic aurora_webmail 9.8.3
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.
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Executive Summary

CVE-2025-12460 is a Cross-Site Scripting (XSS) vulnerability in Afterlogic Aurora webmail version 9.8.3 and below. An attacker can send a specially crafted HTML email containing JavaScript code embedded in an img HTML tag. When a user views this email, the malicious JavaScript executes in the context of the user's webmail browser session, potentially allowing the attacker to access user data or perform actions on behalf of the user. [1]

Impact Analysis

This vulnerability can allow a remote attacker to execute arbitrary JavaScript code in your webmail browser session. This could lead to unauthorized access to your personal data, session hijacking, or other malicious actions performed within your webmail interface without your consent. [1]

Detection Guidance

This vulnerability can be detected by identifying if your system is running Afterlogic Aurora webmail version 9.8.3 or below, which is vulnerable to this XSS issue. Additionally, inspecting incoming email messages for specially crafted HTML content, particularly img tags containing JavaScript, may help detect exploitation attempts. However, no specific detection commands are provided in the available resources. [1]

Mitigation Strategies

To mitigate this vulnerability immediately, users running version 9.8.3 should apply the provided fix by replacing the file `vendor/afterlogic/mailso/lib/MailSo/Base/HtmlUtils.php` with the patched version or manually patching the file. The manual patch involves adding a new static method `SanitizeComments` to sanitize HTML comments and inserting a call to this method during HTML processing to remove malicious scripts embedded in comments. This prevents execution of arbitrary JavaScript when rendering email content. Alternatively, updating to the next product release that includes the fix, scheduled for later in 2025, is recommended. [1]

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