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CVE-2023-6486

MEDIUM 5.4 CVSS 3.1
Published
April 9, 2024
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS metabox in all versions up to and including 2.10.3 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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • brainstormforce Spectra Gutenberg Blocks – Website Builder for the Block Editor — Up to and including 2.10.3
  • brainstormforce spectra — Before 2.10.4

References

  • advisory.abay.sh https://advisory.abay.sh/cve-2023-6486 Exploit, Third Party Advisory
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3042670%40ultimate-addons-for-gutenberg%2Ftrunk&old=3037142%40ultimate-addons-for-gutenberg%2Ftrunk&sfp_email=&sfph_mail= Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/d4933a30-974f-487d-9444-b0ea1283a09c?source=cve Third Party Advisory
  • youtu.be https://youtu.be/t5K745dBsT0 Exploit
  • nvd.nist.gov Official NVD record