What is CVE-2023-22453?

CVE-2023-22453 is a medium-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 5.3/10. Published 2023-01-05.

How severe is CVE-2023-22453?

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

Information disclosure in Discourse

CVE-2023-22453

Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, the number of times a user posted in an arbitrary topic is exposed to unauthorized users through the `/u/username.json` endpoint. The issue is patched in version 2.8.14 and 3.0.0.beta16. There is no known workaround.

Vulnerability class: Information Disclosure

EPSS: 0.006 (44.3th percentile) — read the EPSS interpretation.

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.

Affected products

Discourse — versions 2.4.0, 2.9.0, 2.8.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2023-22453?: CVE-2023-22453 is a medium-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 5.3/10. Published 2023-01-05.
How severe is CVE-2023-22453?: Medium severity. CVSS v3 base score is 5.3 out of 10.