PT-2024-14966 · WordPress · The Spectra – Wordpress Gutenberg Blocks

Akbar Kustirama · Published 2024-04-09 · Updated 2024-04-10 · CVE-2023-6486

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions The Spectra – WordPress Gutenberg Blocks plugin for WordPress versions up to and including 2.10.3

Description The issue is related to Stored Cross-Site Scripting via the Custom CSS metabox due to insufficient input sanitization and output escaping. This allows 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.

Recommendations For versions up to and including 2.10.3, update to a version later than 2.10.3 to resolve the issue. As a temporary workaround, consider restricting access to the Custom CSS metabox to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-6486

Affected Products

The Spectra – Wordpress Gutenberg Blocks

References · 8

• 🔥 https://youtu.be/t5K745dBsT0 · Exploit
• 🔥 https://advisory.abay.sh/cve-2023-6486 · Exploit
• 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
• https://osv.dev/vulnerability/CVE-2023-6486 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-6486 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/d4933a30-974f-487d-9444-b0ea1283a09c?source=cve · Note
• https://twitter.com/CVEnew/status/1777891048603492696 · Twitter Post
• https://t.me/cvenotify/76222 · Telegram Post