CVE-2023-4386

2023-10-2008:15:12

CWE-502

Wordfence

web.nvd.nist.gov

wordpress

essential blocks

php object injection

vulnerability

unauthenticated attackers

security advisory

nvd

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8.3

Confidence

High

EPSS

0.002

Percentile

59.0%

JSON

The Essential Blocks plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.2.0 via deserialization of untrusted input in the get_posts function. This allows unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. 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.

Affected configurations

Nvd

Vulners

Node

wpdeveloperessential_blocksRange≤4.2.0wordpress

VendorProductVersionCPE
wpdeveloperessential_blocks*cpe:2.3:a:wpdeveloper:essential_blocks:*:*:*:*:*:wordpress:*:*

Vendor	Product	Version	CPE
wpdeveloper	essential_blocks	*	cpe:2.3:a:wpdeveloper:essential_blocks::::::wordpress::*

CNA Affected

[
  {
    "vendor": "wpdevteam",
    "product": "Essential Blocks Pro",
    "versions": [
      {
        "version": "*",
        "status": "affected",
        "lessThanOrEqual": "1.1.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "wpdevteam",
    "product": "Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates",
    "versions": [
      {
        "version": "*",
        "status": "affected",
        "lessThanOrEqual": "4.2.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]