CVE-2026-87762 Adwised Web Push Notification <= 2.5.7 - Unauthenticated Stored XSS via Secret Key Type Juggling
Unauthenticated attackers can inject malicious JavaScript into the Adwised Web Push Notification plugin, affecting all site visitors.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-87762?
CVE-2026-87762 is a high-severity cross-site scripting vulnerability in Unknown Adwised Web Push Notification, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Adwised Web Push Notification WordPress plugin through 2.5.7 does not have authorisation checks on several state-changing operations, and the secret comparison it uses instead can be bypassed on installations where the secret key has never been set, allowing unauthenticated users to store arbitrary JavaScript that is executed in the browser of every site visitor.
Weakness: CWE-79
Which versions are affected by CVE-2026-87762?
How do I fix CVE-2026-87762?
No fix has been published for CVE-2026-87762 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-2026-87762 being exploited?
There is no known exploitation of CVE-2026-87762 in the wild and no public exploit code.
Sources
Also known as GHSA-3p66-mhrm-qrgr.