CVE-2021-39202
In affected versions the widgets editor introduced in WordPress 5.8 beta 1 has improper handling of HTML input in the Custom HTML feature.
Does this matter?
Lower severity and a low EPSS score (0.82%). Track it; it rarely justifies an emergency change on its own.
Description
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 Custom HTML feature. This leads to stored XSS in the custom HTML widget. This has been patched in WordPress 5.8. It was only present during the testing/beta phase of WordPress 5.8.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.82% probability · 55th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- wordpress/wordpress
- Source
- security-advisories@github.com
References
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297Third Party Advisory
- https://hackerone.com/reports/1222797Permissions Required
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-fr6h-3855-j297Third Party Advisory
- https://hackerone.com/reports/1222797Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.