---
id: CVE-2026-100108
title: >-
  Social Share Buttons <= 1.30 - Authenticated (Subscriber+) Stored Cross-Site
  Scripting via 'share_url' Network Setting
summary: >-
  The Social Share Buttons plugin for WordPress is vulnerable to Stored
  Cross-Site Scripting via the 'form (containing share_url)' parameter in all
  versions up to, and including, 1.30 due to insufficient input sanitization and
  output escap…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: maxfoundry
product: Social Share Buttons
affected:
  - social_share_buttons <= 1.30
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T07:44:03.268Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-100108'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/bc098f5d-3c59-4046-bce8-ac2586e6da19?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social-networks.php#L370
  - url: >-
      https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/blocks/network-block.php#L47
  - url: >-
      https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-network.php#L275
  - url: >-
      https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/admin/review_notice.php#L26
  - url: >-
      https://plugins.trac.wordpress.org/browser/share-button/tags/1.30/classes/class-social.php#L60
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3735252%40share-button&new=3735252%40share-button
tags:
  - cve.org
ingestedAt: '2026-10-16T08:02:23.118Z'
---

## Overview

The Social Share Buttons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form (containing share_url)' parameter in all versions up to, and including, 1.30 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires that the 7-day review-nag timer has elapsed since the attacker's first wp-admin visit, as the nonce needed to reach the save-network handler is only rendered in the DOM once that timer has passed.

## Affected

- `social_share_buttons <= 1.30`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.