Skip to content

Stored XSS Vulnerability via Milestone Attachments

Moderate
marcelfolaron published GHSA-65wf-24mp-hjh2 Nov 16, 2024

Package

No package listed

Affected versions

all versions => 2.3.23

Patched versions

2.4

Description

Summary

Un-sanitized input when creating milestone attachments allows end users to inject javascript payloads into the milestone title variable of the milestone object. The stored XSS payload can be triggered if the milestone is a part of a goal and when the user attempts to edit that goal (see video example).

PoC

YouTube Link: https://youtu.be/n95p1SMP-_A

Impact

Malicious JavaScript can be stored and executed on the client side which can lead to attackers stealing of credentials stored on the browser.

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

CVE ID

No known CVE

Weaknesses

Credits