CVE-2023-0489
WordPress vulnerability analysis and mitigation

Overview

The CVE-2023-0489 affects the WordPress plugin SlideOnline versions 1.2.1 and below. This vulnerability is a Stored Cross-Site Scripting (XSS) issue that affects users with contributor role and above. The vulnerability was publicly disclosed on May 26, 2023 (WPScan).

Technical details

The vulnerability exists because the plugin does not properly validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embedded. This security flaw has been assigned a CVSS score of 6.8 (medium severity) and is classified under CWE-79. The vulnerability falls under the OWASP Top 10 category A7: Cross-Site Scripting (XSS) (WPScan).

Impact

The vulnerability allows users with contributor privileges or higher to perform Stored Cross-Site Scripting attacks. This could potentially lead to the execution of malicious JavaScript code in users' browsers who view the affected pages (WPScan).

Mitigation and workarounds

As of the vulnerability disclosure, there is no known fix available for this issue. Users of the SlideOnline plugin should consider implementing additional security measures or restricting access to contributor roles until a patch is released (WPScan).

Additional resources


SourceThis report was generated using AI

Related WordPress vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-13604HIGH7.2
  • security-malware-firewall
NoYesDec 09, 2025
CVE-2025-13642MEDIUM5.4
  • wp-user-avatar
NoYesDec 09, 2025
CVE-2025-13924MEDIUM4.3
  • advanced-product-fields-for-woocommerce
NoYesDec 09, 2025
CVE-2025-13071N/AN/A
  • custom-admin-menu
NoNoDec 09, 2025
CVE-2025-13070N/AN/A
  • csv-to-sorttable
NoNoDec 09, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management