CVE-2023-33960

Name: CVE-2023-33960
Creator: NVD / NIST
Published: 2023-06-01T17:15:10.803+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.27%

Last modified Jun 17, 2026

CVE-2023-33960 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.27% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.27%

66.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openproject	Openproject	< 12.5.6

References

https://community.openproject.org/wp/48324Permissions Required
https://github.com/opf/openproject/pull/12708Patch
https://github.com/opf/openproject/releases/tag/v12.5.6Release Notes
https://github.com/opf/openproject/security/advisories/GHSA-xjfc-fqm3-95q8Vendor Advisory
https://patch-diff.githubusercontent.com/raw/opf/openproject/pull/12708.patchMailing List, Patch
https://community.openproject.org/wp/48324Permissions Required
https://github.com/opf/openproject/pull/12708Patch
https://github.com/opf/openproject/releases/tag/v12.5.6Release Notes
https://github.com/opf/openproject/security/advisories/GHSA-xjfc-fqm3-95q8Vendor Advisory
https://patch-diff.githubusercontent.com/raw/opf/openproject/pull/12708.patchMailing List, Patch

Timeline

Published: Jun 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-33960?

How severe is CVE-2023-33960?

CVE-2023-33960 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.27% probability of exploitation in the next 30 days.

How do I fix CVE-2023-33960?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-33960?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST