CVE-2026-89047 inisev CVE debrief

Who should care

Defenders responsible for WordPress sites using the Social Media Share Buttons & Social Sharing Icons plugin should assess exposure and prioritize verification and potential updates.

Why it matters

CVE-2026-89047 is a Reflected Cross-Site Scripting vulnerability in the Social Media Share Buttons & Social Sharing Icons plugin for WordPress. Defenders should prioritize verifying and updating the plugin to prevent potential exploitation and protect user agents accessing the site.

• Defenders must verify and update the plugin to prevent potential exploitation.
• User agents accessing the site may be vulnerable to Cross-Site Scripting attacks.
• Successful exploitation could lead to automatic script execution, requiring no further user interaction.

Technical summary

The Social Media Share Buttons & Social Sharing Icons plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL in all versions up to, and including, 3.0.1. This is due to insufficient input sanitization and output escaping, making it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability has a CVSS score of 6.1 and is considered Medium severity. Defenders should prioritize verifying and updating the plugin to a fixed version, if available, and ensure that user agents accessing the site are protected.

Defensive priority

Defenders should prioritize verifying and updating the plugin to a fixed version, if available, and ensure that user agents accessing the site are protected.

Recommended defensive actions

• Verify and update the Social Media Share Buttons & Social Sharing Icons plugin to a fixed version, if available.
• Ensure that user agents accessing the site are protected.
• Monitor for potential exploitation attempts.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description and CVSS score. The Social Media Share Buttons & Social Sharing Icons plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL in all versions up to, and including, 3.0.1. This vulnerability is due to insufficient input sanitization and output escaping, making it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The CVE record was on

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.