CVE-2023-33960 OpenProject vulnerable to project identifier information leakage through robots.txt
Attackers can view public project identifiers via robots.txt even when login is required, exposing internal project names.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-33960?
CVE-2023-33960 is a high-severity vulnerability in opf openproject, published on 1 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OpenProject is web-based project management software. For any OpenProject installation, a `robots.txt` file is generated through the server to denote which routes shall or shall not be accessed by crawlers. These routes contain project identifiers of all public projects in the instance. Prior to version 12.5.6, even if the entire instance is marked as `Login required` and prevents all truly anonymous access, the `/robots.txt` route remains publicly available.
Version 12.5.6 has a fix for this issue. Alternatively, users can download a patchfile to apply the patch to any OpenProject version greater than 10.0 As a workaround, one may mark any public project as non-public and give anyone in need of access to the project a membership.
Which versions are affected by CVE-2023-33960?
1 open source package ship an affected version, including openproject. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
openproject Bitnami | All versions | 12.5.6 |
Products include Openproject Openproject.
How do I fix CVE-2023-33960?
Upgrade openproject to 12.5.6 or later.
Is CVE-2023-33960 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33960 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in opf openproject
- CVE-2026-34717 OpenProject: SQL Injection in Cost Reporting =n Operator via parse_number_string
- CVE-2026-25763 Command Injection on OpenProject repositories leads to Remote Code Execution
- CVE-2026-24685 OpenProject has Argument Injection on Repository module that allows Arbitrary File Write
- CVE-2026-32698 OpenProject has a SQL Injection via Custom Field Name that can be chained to Remote Code Execution
- CVE-2026-32703 OpenProject's repository files are served with the MIME type allowing them to be used to bypass Content Security Policy
Sources
Also known as BIT-openproject-2023-33960, GHSA-xjfc-fqm3-95q8.