PT-2023-17683 · WordPress · Essential Blocks

Marco Wotschka · Published 2023-06-09 · Updated 2023-06-15 · CVE-2023-2087

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions The Essential Blocks plugin for WordPress versions up to, and including, 4.0.6

Description The issue is related to Cross-Site Request Forgery due to missing or incorrect nonce validation on the save function. This allows unauthenticated attackers to change plugin settings via a forged request if they can trick a site administrator into performing an action, such as clicking on a link.

Recommendations For versions up to, and including, 4.0.6, update to a version that includes proper nonce validation on the save function to prevent Cross-Site Request Forgery attacks. As a temporary workaround, consider restricting access to the save function until a patch is available.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2023-2087

Affected Products

Essential Blocks

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2023-2087 · Security Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=2900595%40essential-blocks%2Ftrunk&old=2900029%40essential-blocks%2Ftrunk&sfp_email=&sfph_mail=#file2 · Patch
• https://osv.dev/vulnerability/CVE-2023-2087 · Vendor Advisory
• https://plugins.trac.wordpress.org/browser/essential-blocks/tags/4.0.6/includes/Admin/Admin.php · Patch
• https://t.me/cvenotify/52016 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/d38d41c7-8786-4145-9591-3e24eff3b79c?source=cve · Note