CRITICAL

CVE-2021-24384

CVSS v3

9.8

CRITICAL

EPSS Score

2.1 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2021-24384 yet.

Full record on NVD

Description

The joomsport_md_load AJAX action of the JoomSport WordPress plugin before 5.1.8, registered for both unauthenticated and unauthenticated users, unserialised user input from the shattr POST parameter, leading to a PHP Object Injection issue. Even though the plugin does not have a suitable gadget chain to exploit this, other installed plugins could, which might lead to more severe issues such as RCE

Technical details

Published: 2021-07-06

Frequently asked questions

What is CVE-2021-24384?

Is CVE-2021-24384 actively exploited?

Active exploitation of CVE-2021-24384 has not been confirmed. Its EPSS score was 2.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-24384?

CVE-2021-24384 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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