What is CVE-2021-39202?

CVE-2021-39202 is a high-severity vulnerability in Wordpress Wordpress-develop, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2021-09-09.

How severe is CVE-2021-39202?

High severity. CVSS v3 base score is 7.6 out of 10.

Is CVE-2021-39202 known to be exploited?

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

XSS in Wordpress Wordpress-develop

CVE-2021-39202

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (74.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N.

Affected products

Wordpress Wordpress-develop — versions 5.8 beta 1, 5.8 beta 2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297 (x_refsource_CONFIRM)
hackerone.com/reports/1222797 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-39202?: CVE-2021-39202 is a high-severity vulnerability in Wordpress Wordpress-develop, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2021-09-09.
How severe is CVE-2021-39202?: High severity. CVSS v3 base score is 7.6 out of 10.
Is CVE-2021-39202 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.