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Description

The Gutenverse – Ultimate WordPress FSE Blocks Addons & Ecosystem plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'separatorIconSVG' parameter in versions up to, and including, 3.5.3 due to insufficient input sanitization and output escaping. 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.

PUBLISHED Reserved 2026-02-20 | Published 2026-05-05 | Updated 2026-05-06 | Assigner Wordfence




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

Any version
affected

Timeline

2026-02-20:Vendor Notified
2026-05-04:Disclosed

Credits

Athiwat Tiprasaharn finder

References

www.wordfence.com/...-180f-4743-b1fb-608aa0e3ae79?source=cve

plugins.trac.wordpress.org/changeset/3507804/gutenverse

cve.org (CVE-2026-2868)

nvd.nist.gov (CVE-2026-2868)

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