CVE-2023-33960
OpenProject vulnerable to project identifier information leakage through robots.txt
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
OpenProject vulnerable to project identifier information leakage through robots.txt
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.
- Record
CVE-2023-33960- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2023-38091
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.
- Record
EUVD-2023-38091- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
NVD
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.
- Record
CVE-2023-33960- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-319
- Updated
- 2026-11-02
OSV
OpenProject vulnerable to project identifier information leakage through robots.txt
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.
- Record
CVE-2023-33960- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVBIT-openproject-2023-33960 No score
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.
- Record
BIT-openproject-2023-33960- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openprojectBitnami |
before 12.5.6 | 12.5.6 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | OpenProject < 12.5.4 - Project Identifiers Exposure |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, Nuclei, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-33960 is a high vulnerability (CVSS 7.5) in Openproject, published June 1, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.26%, the 69th percentile. Fixed in openproject 12.5.6.
References
github.com/opf/openproject/security/advisories/GHSA-xjfc-fqm3-95q8
community.openproject.org/wp/48324
patch-diff.githubusercontent.com/raw/opf/openproject/pull/12708.patch
nvd.nist.gov/vuln/detail/CVE-2023-33960