What is CVE-2023-25819?

CVE-2023-25819 is a medium-severity vulnerability in Discourse, classified under Exposure of Private Personal Information to an Unauthorized Actor. CVSS score: 5.3/10. Published 2023-03-04.

How severe is CVE-2023-25819?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Discourse

CVE-2023-25819

Discourse is an open source platform for community discussion. Tags that are normally private are showing in metadata. This affects any site running the `tests-passed` or `beta` branches >= 3.1.0.beta2. The issue is patched in the latest `beta` and `tests-passed` version of Discourse.

Published 2023-03-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Discourse — versions < 3.1.0.beta3, 3.1.0

Weakness classification (CWE)

References

github.com/discourse/discourse/security/advisories/GHSA-xx2h-mwm7-hq6q (Third Party Advisory)
github.com/discourse/discourse/commit/a9f2c6db64e7d78b8e0f55e7bd77c5fe3459b831 (Patch)

Frequently asked questions

What is CVE-2023-25819?: CVE-2023-25819 is a medium-severity vulnerability in Discourse, classified under Exposure of Private Personal Information to an Unauthorized Actor. CVSS score: 5.3/10. Published 2023-03-04.
How severe is CVE-2023-25819?: Medium severity. CVSS v3 base score is 5.3 out of 10.