What’s Vulnerable › Vulnerabilities

CVE-2022-4666: Markup <= 4.8.1 - Contributor+ Stored XSS via Shortcode

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-02-21 · updated 2026-06-17

Description

The Markup (JSON-LD) structured in schema.org WordPress plugin through 4.8.1 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Affected products

• Markup (JSON-LD) structured in schema.org: through 4.8.1

References

• https://wpscan.com/vulnerability/a6d23f2f-9504-40da-9b71-189033d8bd1d
• https://wpscan.com/vulnerability/a6d23f2f-9504-40da-9b71-189033d8bd1d

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