CVE-2020-35938

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-01-01 · updated 2026-06-17
Weakness: CWE-502

Description

PHP Object injection vulnerabilities in the Post Grid plugin before 2.0.73 for WordPress allow remote authenticated attackers to inject arbitrary PHP objects due to insecure unserialization of data supplied in a remotely hosted crafted payload in the source parameter via AJAX. The action must be set to post_grid_import_xml_layouts.

Affected products

pickplugins Post Grid: before 2.0.73 — fixed in 2.0.73
PickPlugins Team Showcase: before 1.22.16 — fixed in 1.22.16

How to fix

Upgrade to a fixed version: pickplugins Post Grid 2.0.73; PickPlugins Team Showcase 1.22.16. Check the vendor advisory for mitigations.

References

https://www.wordfence.com/blog/2020/10/high-severity-vulnerabilities-in-post-grid-and-team-showcase-plugins/
https://www.wordfence.com/blog/2020/10/high-severity-vulnerabilities-in-post-grid-and-team-showcase-plugins/

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