CVE-2026-96578 GSpeech TTS <= 3.22.0 - Unauthenticated Stored Cross-Site Scripting via Comment Content
Unauthenticated attackers can inject arbitrary scripts via comments in the GSpeech TTS WordPress plugin, leading to code execution when pages are viewed.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96578?
CVE-2026-96578 is a high-severity cross-site scripting vulnerability in creative-solutions-1 GSpeech TTS – WordPress Text To Speech Plugin, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The GSpeech TTS – WordPress Text To Speech Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 3.22.0 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. This mXSS-style transform bypasses WordPress comment kses sanitization because the payload is stored using only kses-allowed tags and attributes; the malicious event handlers and style fragments become active only when the plugin's output-buffer callback rewrites the rendered HTML at request time.
Weakness: CWE-79
Which versions are affected by CVE-2026-96578?
How do I fix CVE-2026-96578?
No fix has been published for CVE-2026-96578 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-2026-96578 being exploited?
There is no known exploitation of CVE-2026-96578 in the wild and no public exploit code.
Sources
Also known as GHSA-5j3q-4q9j-rwqr.