CVE-2020-35938Network attack vector

Conditional code execution via unsafe layout deserialization

Published Jan 1, 2021 · Updated Aug 4, 2024

PHP object injection in PickPlugins Post Grid before 2.0.73 allows remote authenticated users to execute code through a crafted layout. The post_grid_import_xml_layouts AJAX handler retrieves the URL in source, decodes its layout data, and passes attacker-controlled postmeta values to unserialize(). Subscriber-level access normally reaches the handler, but code execution requires a usable magic-method gadget in another installed plugin or theme; otherwise the flaw only instantiates arbitrary PHP objects.

CVSS severity7.5
High
EPSS probability2.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in PickPlugins Post Grid before 2.0.73 allows remote authenticated users to execute code through a crafted layout. The post_grid_import_xml_layouts AJAX handler retrieves the URL in source, decodes its layout data, and passes attacker-controlled postmeta values to unserialize(). Subscriber-level access normally reaches the handler, but code execution requires a usable magic-method gadget in another installed plugin or theme; otherwise the flaw only instantiates arbitrary PHP objects.

The record

CVE
CVE-2020-35938
Published
Jan 1, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 1, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.0NIST NVDAV:N/AC:M/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.5MITRECVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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