What’s Vulnerable › Vulnerabilities

CVE-2023-0273: Custom Content Shortcode <= 4.0.2 - Contributor+ Stored XSS

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-03-20 · updated 2026-06-17

Description

The Custom Content Shortcode WordPress plugin through 4.0.2 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

• Custom Content Shortcode: through 4.0.2

References

• https://wpscan.com/vulnerability/5cafbba6-478f-4f5d-a2d4-60c6a22f2f1e
• https://wpscan.com/vulnerability/5cafbba6-478f-4f5d-a2d4-60c6a22f2f1e

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