CVE-2025-2543 Advanced Accordion Gutenberg Block <= 5.0.2 - Authenticated (Author+) Stored Cross-Site Scripting via SVG File Upload
Authenticated attackers can inject arbitrary scripts via SVG uploads in the Advanced Accordion Gutenberg Block plugin, affecting WordPress sites.
- 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-2025-2543?
CVE-2025-2543 is a medium-severity cross-site scripting vulnerability in spiderdevs Advanced Accordion Gutenberg Block – Create Beautiful FAQs, Content Accordions & Interactive Tabs, published on 24 Apr 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Advanced Accordion Gutenberg Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 5.0.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the SVG file.
Weakness: CWE-79
Which versions are affected by CVE-2025-2543?
How do I fix CVE-2025-2543?
No fix has been published for CVE-2025-2543 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-2025-2543 being exploited?
There is no known exploitation of CVE-2025-2543 in the wild and no public exploit code.
Sources
Also known as GHSA-4g2r-p7w3-jh5j.