SB2020031936 - Cross-site scripting in mantisbt.sourceforge.net MantisBT

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2019-15539)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The proj_doc_edit_page.php Project Documentation feature in MantisBT before 2.21.3 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code (if CSP settings permit it) after uploading an attachment with a crafted filename. The code is executed when editing the document's page.

Remediation

Install update from vendor's website.

References

• https://github.com/mantisbt/mantisbt/commit/bd094dede74ff6e313e286e949e2387233a96eea
• https://mantisbt.org/bugs/view.php?id=26078