What is CVE-2022-0966?

CVE-2022-0966 is a medium-severity vulnerability in Showdoc, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-03-15.

How severe is CVE-2022-0966?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Showdoc

CVE-2022-0966

Stored XSS via File Upload in star7th/showdoc in GitHub repository star7th/showdoc prior to 2.4.10.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-03-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (43.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.3% 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

Showdoc
Star7th Star7th/showdoc — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/star7th/showdoc/commit/3caa32334db0c277b84e993eaca2036f5d1dbef8 (Patch, Third Party Advisory)
huntr.dev/bounties/e06c0d55-00a3-4f82-a009-0310b2e402fe (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-0966?: CVE-2022-0966 is a medium-severity vulnerability in Showdoc, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-03-15.
How severe is CVE-2022-0966?: Medium severity. CVSS v3 base score is 5.4 out of 10.