The woocommerce-product-addon plugin before 18.4 for WordPress has XSS via an import of a new meta data structure.
https://www.pluginvulnerabilities.com/2019/08/08/this-authenticated-persistent-xss-vulnerability-might-be-what-hackers-are-targeting-ppom-for-woocommerce-for/
https://wpvulndb.com/vulnerabilities/9502
https://wordpress.org/plugins/woocommerce-product-addon/#developers
Source: Mitre, NVD
Published: 2019-08-12
Updated: 2026-06-17
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N
Severity: Low
Base Score: 5.4
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
EPSS: 0.00204