CVE-2026-19719 Social Media Share Buttons & Social Sharing Icons < 3.0.1 - Contributor+ Stored XSS via Post Title
Contributors can inject malicious scripts via post titles in a WordPress plugin, leading to stored XSS when visitors interact with share buttons.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-19719?
CVE-2026-19719 is a medium-severity cross-site scripting vulnerability in Unknown Social Media Share Buttons & Social Sharing Icons, published on 2 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Social Media Share Buttons & Social Sharing Icons WordPress plugin before 3.0.1 does not escape the post title before outputting it in an inline JavaScript event handler, allowing users with the Contributor role and above to perform Stored Cross-Site Scripting attacks which are triggered when a visitor interacts with the affected button. Exploitation requires the Social Media Share Buttons & Social Sharing Icons WordPress plugin before 3.0.1 to be running a non-default icon display configuration.
Weakness: CWE-79
Which versions are affected by CVE-2026-19719?
How do I fix CVE-2026-19719?
No fix has been published for CVE-2026-19719 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-19719 being exploited?
There is no known exploitation of CVE-2026-19719 in the wild and no public exploit code.
Sources
Also known as GHSA-5959-3p9c-8939.