PT-2023-29014 · WordPress · Essential Blocks

Marco Wotschka · Publicado 2023-10-20 · Atualizado 2023-10-26 · CVE-2023-4386

Positive Technologies (AI Summary)

CVSS v3.1

8.1

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions The Essential Blocks plugin for WordPress versions up to, and including, 4.2.0

Description The issue allows unauthenticated attackers to inject a PHP Object via deserialization of untrusted input in the get posts function. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code. No POP chain is present in the vulnerable plugin.

Recommendations For versions up to, and including, 4.2.0, update to a version that fixes the PHP Object Injection issue to prevent unauthenticated attackers from injecting PHP Objects. As a temporary workaround, consider restricting access to the get posts function until a patch is available.

Correção

Deserialization of Untrusted Data

Enumeração de Fraquezas

CWE-502

Identificadores relacionados

CVE-2023-4386

Produtos afetados

Essential Blocks

Referências · 6

• https://wordfence.com/threat-intel/vulnerabilities/id/af468f83-d6ad-474c-bf7f-c4eeb6df1b54?source=cve · Nota
• https://t.me/cvenotify/59795 · Publicação no Telegram
• https://nvd.nist.gov/vuln/detail/CVE-2023-4386 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2023-4386 · Aviso do Fabricante
• https://twitter.com/CVEnew/status/1715271101498945973 · Publicação no Twitter
• https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/PostBlock.php?rev=2950425#L30 · Nota