CVE-2026-4075 Cross-site scripting in BWL Advanced FAQ Manager Lite
Authenticated attackers can inject arbitrary scripts via shortcode attributes, leading to stored XSS execution on victim pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4075?
CVE-2026-4075 is a medium-severity cross-site scripting vulnerability in xenioushk BWL Advanced FAQ Manager Lite, published on 26 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The BWL Advanced FAQ Manager Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'baf_sbox' shortcode in all versions up to and including 1.1.1. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes such as 'sbox_id', 'sbox_class', 'placeholder', 'highlight_color', 'highlight_bg', and 'cont_ext_class'. These attributes are directly interpolated into HTML element attributes without any esc_attr() escaping in the baf_sbox() function. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2026-4075?
How do I fix CVE-2026-4075?
No fix has been published for CVE-2026-4075 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-2026-4075 being exploited?
There is no known exploitation of CVE-2026-4075 in the wild and no public exploit code.
Sources
Also known as GHSA-2vv2-mqg3-3j3p.