CVE-2024-35224: Stored Cross-Site Scripting (XSS) in OpenProject

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-23 · updated 2026-06-17
Weakness: CWE-80

Description

OpenProject is the leading open source project management software. OpenProject utilizes `tablesorter` inside of the Cost Report feature. This dependency, when misconfigured, can lead to Stored XSS via `{icon}` substitution in table header values. This attack requires the permissions "Edit work packages" as well as "Add attachments". A project admin could attempt to escalate their privileges by sending this XSS to a System Admin. Otherwise, if a full System Admin is required, then this attack is significantly less impactful. By utilizing a ticket's attachment, you can store javascript in the application itself and bypass the application's CSP policy to achieve Stored XSS. This vulnerability has been patched in version(s) 14.1.0, 14.0.2 and 13.4.2.

Affected products

opf openproject: before 13.4.2; from 14.0.0 before 14.0.2; 14.1.0 — fixed in 13.4.2, 14.0.2

How to fix

Upgrade to a fixed version: opf openproject 13.4.2, 14.0.2. Check the vendor advisory for mitigations.

References

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