What is CVE-2020-20363?

CVE-2020-20363 is a medium-severity vulnerability in Pbootcms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-07-08.

How severe is CVE-2020-20363?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Pbootcms

CVE-2020-20363

Crossi Site Scripting (XSS) vulnerability in PbootCMS 2.0.3 in admin.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-08 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% 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

Pbootcms — versions 2.0.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
github.com/hnaoyun/PbootCMS (Broken Link)
github.com/wind226/CVE/issues/1 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-20363?: CVE-2020-20363 is a medium-severity vulnerability in Pbootcms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-07-08.
How severe is CVE-2020-20363?: Medium severity. CVSS v3 base score is 4.8 out of 10.