Simple Social Media Share Buttons – Social Sharing for Everyone <= 6.2.0 - Cross-Site Request Forgery
Strategic Overview
- Status
- Patched in 6.2.1
- Affected Version
<= 6.2.0- CVSS
- 4.3Medium
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2026-34904
At a glance
CVE-2026-34904 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Simple Social Media Share Buttons WordPress plugin, affecting versions <= 6.2.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 6.2.1; sites on affected versions should update now. Disclosed April 2026, reported by Carlos Ferreira.
Vulnerability Overview
The Simple Social Media Share Buttons – Social Sharing for Everyone plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.2.0. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action granted they can trick a site administrator into performing an action such as clicking on a link.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.
CWE-352: Cross-Site Request Forgery (CSRF)
Reaching this weakness in Simple Social Media Share Buttons <= 6.2.0 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Simple Social Media Share Buttons the fix is 6.2.1: builds <= 6.2.0 are affected, anything from 6.2.1 onward is not.
Remediation
Update to version 6.2.1, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Simple Social Media Share Buttons: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Simple Social Media Share Buttons 6.2.1 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in Simple Social Media Share Buttons – Social Sharing for Everyone
- 6.3Simple Social Media Share Buttons 2.0.4 - 2.0.21 Missing Authorization
- 6.1Simple Social Media Share Buttons <= 3.2.0 Reflected XSS
- 6.1Simple Social Media Share Buttons <= 3.1.1 Reflected XSS
- 5.4CVE-2021-24486: Simple Social Media Share… Contributor+ Stored XSS
CVE-2021-24486 - 5.3CVE-2023-5845: Simple Social… Password Protected Post Disclosure
CVE-2023-5845 - 4.8CVE-2021-24656: Simple Social Media Share Buttons Admin+ Stored XSS
CVE-2021-24656 - 4.4CVE-2024-13610: Simple Social Media Share Buttons <= 5.4.0 Stored XSS
CVE-2024-13610
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