CVE-2022-1093: WP Meta SEO < 4.4.7 - Admin+ Stored Cross-Site Scripting via breadcrumbs

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-05-23 · updated 2026-06-17
Weakness: CWE-79

Description

The WP Meta SEO WordPress plugin before 4.4.7 does not sanitise or escape the breadcrumb separator before outputting it to the page, allowing a high privilege user such as an administrator to inject arbitrary javascript into the page even when unfiltered html is disallowed.

Affected products

joomunited WP Meta SEO: before 4.4.7 — fixed in 4.4.7

How to fix

Upgrade to a fixed version: joomunited WP Meta SEO 4.4.7. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/57017050-811e-474d-8256-33d19d4c0553
https://wpscan.com/vulnerability/57017050-811e-474d-8256-33d19d4c0553

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