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Critical severity · published Oct 20, 2023
CVE-2023-4402
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_products…
9.8
CVSS
1.5%
EPSS
No
On KEV
Description
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_products 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EB
Essential Blocks · Wpdeveloper
before 4.2.1 · source: NVD
EB
Essential Blocks Pro · Wpdeveloper
before 1.1.1 · source: NVD
Affected product
EB
Essential Blocks
Wpdeveloper
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4402
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4402
Exploit
https://plugins.trac.wordpress.org/browser/essential-blocks/trunk/includes/API/Product.php?rev=2950425#L49
Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/1ede7a25-9bb2-408e-b7fb-e5bd4f594351?source=cve
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