What is CVE-2025-8566?

CVE-2025-8566 is a medium-severity vulnerability in Cssigniterteam Gutenbee – Gutenberg Blocks, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-09-30.

How severe is CVE-2025-8566?

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

Is CVE-2025-8566 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Cssigniterteam Gutenbee – Gutenberg Blocks

CVE-2025-8566

The GutenBee – Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via parameters in the CountUp and Google Maps Blocks in all versions up to, and including, 2.18.0 due to insufficient input sanitization and…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (9.8th 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

Cssigniterteam Gutenbee – Gutenberg Blocks — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2025-8566?: CVE-2025-8566 is a medium-severity vulnerability in Cssigniterteam Gutenbee – Gutenberg Blocks, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-09-30.
How severe is CVE-2025-8566?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2025-8566 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.