CVE-2026-2951 | THREATINT

Description

The Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 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 2026-02-21 | Published 2026-04-23 | Updated 2026-04-23 | Assigner Wordfence

MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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

Credits

Muhammad Yudha – DJ finder

References

www.wordfence.com/…-35f5-4eaf-a663-1adab3ba2a16?source=cve

plugins.trac.wordpress.org/changeset/3495930/gutentor

cve.org (CVE-2026-2951)

nvd.nist.gov (CVE-2026-2951)

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