Security Alert Summary
The WP Social Meta plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in admin settings affecting all versions up to and including 1.0.1. Authenticated attackers with administrator-level permissions can inject scripts that execute when a user views an affected page. This issue only affects multisite installations and installations where unfiltered_html has been disabled.
CVE Details
- CVE ID: CVE-2026-2498
- Affected component: WP Social Meta plugin for WordPress
- Affected versions: All versions up to and including 1.0.1
- Published: February 26, 2026, 2:16:25 AM UTC
- Last modified: February 26, 2026, 2:16:25 AM UTC
- CVSS v3.1 base score: 4.4 (MEDIUM)
- CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- Authentication / privileges / user interaction: Requires an authenticated user with administrator-level permissions (Privileges Required: HIGH). Exploit does not require additional user interaction (UI: NONE).
- Primary impact: Confidentiality: Low; Integrity: Low; Availability: None
- Scope: CHANGED
- CWE / weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation — Cross-site Scripting)
Technical Details
The vulnerability is a stored Cross-Site Scripting (XSS) issue in the plugin’s admin settings caused by insufficient input sanitization and output escaping. An authenticated user with administrator-level privileges can store malicious script payloads in settings fields; those payloads are rendered into pages and execute in the context of visitors who view the injected pages.
The CVE entry specifies the problem occurs via admin settings and notes the condition applies only to multisite installations and installations where unfiltered_html has been disabled. The report does not name specific functions or REST endpoints; remediation requires ensuring proper sanitization on input and escaping on output for the affected settings fields.
How This Could Impact Your Website
Consider a small organization running a multisite WordPress network. The site owner delegates administration tasks to an internal staff member and occasionally grants administrator access to an external contractor. If an actor with administrator privileges stores a malicious script in plugin settings, any user who visits an affected page could have that script executed in their browser.
- Site owners and administrators could have sensitive session data exposed to the injected script, increasing risk of session theft.
- Internal staff and contributors who view affected pages could have their account-related data exposed or manipulated in ways consistent with low confidentiality and low integrity impacts (for example, disclosure of visible user data or modification of displayed content).
- Exposed email addresses or other user-visible data could increase the risk of targeted phishing or social engineering against staff or external contractors.
If you’re unsure whether your site is affected or how to assess your current user roles and plugins, it may be worth having a professional review your setup.
Recommended Actions
- Update the affected plugin as soon as a patched version is available.
- Review and reduce unnecessary user roles, especially administrator accounts and contributors with elevated capabilities.
- Enforce strong passwords and enable two-factor authentication for editors and administrators.
- Remove unused or unmaintained plugins from your installation.
- Monitor site activity and logs for unusual behavior, such as unexpected changes to settings or content.
If you’d like help reviewing your plugins, user roles, or overall WordPress security posture, our team at Freshy is happy to help.
References
- https://plugins.trac.wordpress.org/browser/wp-social-meta/tags/1.0.1/wpsm.php#L158
- https://plugins.trac.wordpress.org/browser/wp-social-meta/tags/1.0.1/wpsm.php#L205
- https://plugins.trac.wordpress.org/browser/wp-social-meta/trunk/wpsm.php#L158
- https://plugins.trac.wordpress.org/browser/wp-social-meta/trunk/wpsm.php#L205
- https://www.wordfence.com/threat-intel/vulnerabilities/id/313906d3-3999-4255-b9ac-580d9d3e80e6?source=cve
