What is CVE-2023-31140?

CVE-2023-31140 is a medium-severity vulnerability in Openproject, classified under Insufficient Session Expiration. CVSS score: 4.8/10. Published 2023-05-08.

How severe is CVE-2023-31140?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Vulnerability in Openproject

CVE-2023-31140

OpenProject is open source project management software. Starting with version 7.4.0 and prior to version 12.5.4, when a user registers and confirms their first two-factor authentication (2FA) device for an account, existing logged in sessions for that user account are not terminated. Likewise, if an administrators creates a mobile phone 2FA device on behalf of a user, their existing sessions are not terminated. The issue has been resolved in OpenProject version 12.5.4 by actively terminating sessions of user accounts having registered and confirmed a 2FA device. As a workaround, users who register the first 2FA device on their account can manually log out to terminate all other active sessions. This is the default behavior of OpenProject but might be disabled through a configuration option. Double check that this option is not overridden if one plans to employ the workaround.

Published 2023-05-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Openproject
Opf Openproject — versions >= 7.4.0, < 12.5.4

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

github.com/opf/openproject/security/advisories/GHSA-xfp9-qqfj-x28q (Mitigation, Vendor Advisory)
github.com/opf/openproject/pull/12508 (Patch)
community.openproject.org/wp/48035 (Exploit)
www.openproject.org/docs/release-notes/12-5-4/ (Release Notes, Mitigation)

Frequently asked questions

What is CVE-2023-31140?: CVE-2023-31140 is a medium-severity vulnerability in Openproject, classified under Insufficient Session Expiration. CVSS score: 4.8/10. Published 2023-05-08.
How severe is CVE-2023-31140?: Medium severity. CVSS v3 base score is 4.8 out of 10.