What is CVE-2022-2523?

CVE-2022-2523 is a medium-severity vulnerability in Beancount Beancount/fava, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-07-25.

How severe is CVE-2022-2523?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Beancount Beancount/fava

CVE-2022-2523

Cross-site Scripting (XSS) - Reflected in GitHub repository beancount/fava prior to 1.22.2.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-07-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.5th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

Beancount Beancount/fava — versions unspecified
Fava Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.dev/bounties/2a1802d8-1c2e-4919-96a7-d4dcf7ffcf8f (Exploit, Patch, Third Party Advisory)
github.com/beancount/fava/commit/dccfb6a2f4567f35ce2e9a78e24f92ebf946bc9b (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-2523?: CVE-2022-2523 is a medium-severity vulnerability in Beancount Beancount/fava, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-07-25.
How severe is CVE-2022-2523?: Medium severity. CVSS v3 base score is 6.1 out of 10.