What’s Vulnerable › Vulnerabilities

CVE-2023-0489: SlideOnline <= 1.2.1 - 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: 2023-06-19 · updated 2026-06-17

Description

The SlideOnline WordPress plugin through 1.2.1 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

• Slideonline Project Sideonline: through 1.2.1

References

• https://wpscan.com/vulnerability/238842ee-6392-4eb2-96cb-08e4ece6fca1
• https://wpscan.com/vulnerability/238842ee-6392-4eb2-96cb-08e4ece6fca1

Get alerted when CVE-2023-0489 or the next vulnerability affects your stack