OpenProject users that are not project members can be used to calculate Labor Budget, leaking their global hourly rate
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
OpenProject is an open-source, web-based project management software. Prior to 17.2.0, when editing a project budget and planning the labor cost, it was not checked that the user that was planned in the budget is actually a project member. This exposed the user's default rate (if one was set up) to users that should only see that information for project members. Also, the endpoint that handles the pre-calculation for the frontend to display a preview of the costs, while it was being entered, did not properly validate the membership of the user as well. This also allowed to calculate costs with the default rate of non-members. This vulnerability is fixed in 17.2.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA openproject (opf) Fixed in 17.2.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30236
References
More opf Openproject vulnerabilities
- TI-2019-08673 A SQL injection vulnerability in the activities API in OpenProject before 8.3.2 allows a… CVSS 3.0HIGH 8.1
- TI-2026-26047 OpenProject: 2FA OTP Verification Missing Rate Limiting CVSS 3.1HIGH 7.4
- TI-2026-29552 OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup CVSS 3.1HIGH 7.1
- TI-2023-14850 OpenProject user sessions not terminated after activation of 2FA CVSS 3.1MEDIUM 6.5
- TI-2026-18162 OpenProject is Vulnerable to Code Execution in E-Mail function CVSS 4.0HIGH 8.6
- TI-2026-26961 OpenProject: SQL Injection in Cost Reporting =n Operator via parse_number_string CVSS 3.1CRITICAL 9.9
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences