What is CVE-2020-36324?

CVE-2020-36324 is a medium-severity vulnerability in Wikimedia Analytics-Quarry-Web, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-21.

How severe is CVE-2020-36324?

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

XSS in Wikimedia Analytics-Quarry-Web

CVE-2020-36324

Wikimedia Quarry analytics-quarry-web before 2020-12-15 allows Reflected XSS because app.py does not explicitly set the application/json content type.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-04-21 · 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: 0.006 (47.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Wikimedia Analytics-Quarry-Web

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

quarry.wmflabs.org/ (Product, Third Party Advisory)
github.com/wikimedia/analytics-quarry-web/commit/4b7e1d6a3a52ec6cf826a971135a38… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-36324?: CVE-2020-36324 is a medium-severity vulnerability in Wikimedia Analytics-Quarry-Web, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-21.
How severe is CVE-2020-36324?: Medium severity. CVSS v3 base score is 6.1 out of 10.