CVE-2025-15664 BEAF < 4.7.19 - Author+ Stored XSS via Before Label
Authors can inject malicious scripts via slider labels that execute in administrators' browsers, potentially leading to account takeover.
- 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-2025-15664?
CVE-2025-15664 is a medium-severity cross-site scripting vulnerability in Unknown Ultimate Before After Image Slider & Gallery, 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 Ultimate Before After Image Slider & Gallery WordPress plugin before 4.7.19 does not properly escape the slider's before-label value before its bundled client-side script re-injects it into the DOM, allowing users with the Author role and above to store a payload that executes in the browser of anyone (including an administrator) who views the slider.
Weakness: CWE-79
Which versions are affected by CVE-2025-15664?
How do I fix CVE-2025-15664?
No fix has been published for CVE-2025-15664 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-2025-15664 being exploited?
There is no known exploitation of CVE-2025-15664 in the wild and no public exploit code.
Sources
Also known as GHSA-jmj2-wp2q-8p2g.