What is CVE-2020-28650?

CVE-2020-28650 is a medium-severity vulnerability in Wpbakery Page Builder, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2020-11-16.

How severe is CVE-2020-28650?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Is CVE-2020-28650 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Wpbakery Page Builder

CVE-2020-28650

The WPBakery plugin before 6.4.1 for WordPress allows XSS because it calls kses_remove_filters to disable the standard WordPress XSS protection mechanism for the Author and Contributor roles.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-11-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Wpbakery Page Builder

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

www.wordfence.com/blog/2020/10/vulnerability-exposes-over-4-million-sites-using… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-28650?: CVE-2020-28650 is a medium-severity vulnerability in Wpbakery Page Builder, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2020-11-16.
How severe is CVE-2020-28650?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2020-28650 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.