Description
The ZoloBlocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple Gutenberg blocks in versions up to, and including, 2.3.10. This is due to insufficient input sanitization and output escaping on user-supplied attributes within multiple block components including Google Maps markers, Lightbox captions, Image Gallery data attributes, Progress Pie prefix/suffix fields, and Text Path URL fields. 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.
References7
- plugins.trac.wordpress.org/browser/zoloblocks/tags/2.3.3/build/…
- plugins.trac.wordpress.org/browser/zoloblocks/tags/2.3.3/build/…
- plugins.trac.wordpress.org/browser/zoloblocks/tags/2.3.3/build/…
- plugins.trac.wordpress.org/browser/zoloblocks/tags/2.3.3/build/…
- plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&repo…
- plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&repo…
- www.wordfence.com/threat-intel/vulnerabilities/id/5860d456-a992…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 17 · as of 9 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.