Best Practical Request Tracker up to 5.0.8/6.0.1 Calendar Invitation Parser cross site scripting

Summaryinfo

A vulnerability has been found in Best Practical Request Tracker up to 5.0.8/6.0.1 and classified as problematic. Affected by this issue is some unknown functionality of the component Calendar Invitation Parser. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2025-9158. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Best Practical Request Tracker up to 5.0.8/6.0.1. It has been rated as problematic. This issue affects an unknown part of the component Calendar Invitation Parser. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The summary by CVE is:

The Request Tracker software is vulnerable to a Stored XSS vulnerability in calendar invitation parsing feature, which displays invitation data without HTML sanitization. XSS vulnerability allows an attacker to send a specifically crafted e-mail enabling JavaScript code execution by displaying the ticket in the context of the logged-in user. This vulnerability affects versions from 5.0.4 through 5.0.8 and from 6.0.0 through 6.0.1.

The weakness was shared by Mateusz Szymaniec. It is possible to read the advisory at cert.pl. The identification of this vulnerability is CVE-2025-9158 since 08/19/2025. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 271215 (Debian dsa-6031 : request-tracker5 - security update), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (271215) and EUVD (EUVD-2025-35802). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Ticket Tracking Software

Vendor

• Best Practical

Name

• Request Tracker

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 6.0.0
• 6.0.1

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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