How severe is CVE-2020-35939?

CVE-2020-35939 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-35939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35939?

CVE-2020-35939 primarily affects Pickplugins Post Grid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-35939?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-35939 published?

CVE-2020-35939 was published on 2021-01-01 and last updated on 2026-06-17.

CVE-2020-35939

CVE-2020-35939 is a high-severity vulnerability in Pickplugins Post Grid with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Pickplugins Post Grid
Published: 2021-01-01
Last modified: 2026-06-17

Description

PHP Object injection vulnerabilities in the Team Showcase plugin before 1.22.16 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 team_import_xml_layouts.

Frequently asked questions

What is CVE-2020-35939?: PHP Object injection vulnerabilities in the Team Showcase plugin before 1.22.16 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 team_import_xml_layouts.
How severe is CVE-2020-35939?: CVE-2020-35939 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-35939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35939?: CVE-2020-35939 primarily affects Pickplugins Post Grid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-35939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-35939 published?: CVE-2020-35939 was published on 2021-01-01 and last updated on 2026-06-17.

References

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

Affected products (2)

cpe:2.3:a:pickplugins:post_grid:*:*:*:*:*:wordpress:*:*
cpe:2.3:a:pickplugins:team_showcase:*:*:*:*:*:wordpress:*:*

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