How severe is CVE-2025-2543?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Spiderdevs Advanced Accordion Gutenberg Block – Create Beautiful Faqs, Content Accordions & Interactive Tabs

CVE-2025-2543

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (22.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Spiderdevs Advanced Accordion Gutenberg Block – Create Beautiful Faqs, Content Accordions & Interactive Tabs — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-2543?: CVE-2025-2543 is a medium-severity vulnerability in Spiderdevs Advanced Accordion Gutenberg Block – Create Beautiful Faqs, Content Accordions & Interactive Tabs, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-04-24.
How severe is CVE-2025-2543?: Medium severity. CVSS v3 base score is 6.4 out of 10.