← Vulnerability feed

Vulnerability record · CVE-2021-24384 · published 6 July 2021

CVE-2021-24384: Beardev joomsport deserialization of untrusted data vulnerability

Beardev · Joomsport

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

9.8 CVSS 3.1 Critical EPSS 2.1% · top 19.4% CWE-502 · Deserialization of untrusted data
9.8CVSS 3.1 base score, v2 7.5
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by 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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://wpscan.com/vulnerability/fb6c407c-713c-4e83-92ce-4e5f791be696 ExploitThird Party Advisory
https://wpscan.com/vulnerability/fb6c407c-713c-4e83-92ce-4e5f791be696 ExploitThird Party Advisory

Track CVE-2021-24384 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-4050Beardev joomsport vulnerabilityThe JoomSport WordPress plugin before 5.2.8 does not properly sanitise and escape a parameter before using it in a SQL statement, leading to a SQL in…EPSS 4.8%9.8CVE-2019-14348Beardev joomsport sql injection vulnerabilityThe BearDev JoomSport plugin 3.3 for WordPress allows SQL injection to steal, modify, or delete database information via the joomsport_season/new-yor…EPSS 21%8.8CVE-2024-44031Beardev joomsport missing authorization vulnerabilityMissing Authorization vulnerability in beardev JoomSport joomsport-sports-league-results-management.This issue affects JoomSport: from n/a through <=…EPSS 0.36%8.8CVE-2024-43355Beardev joomsport missing authorization vulnerabilityMissing Authorization vulnerability in BearDev JoomSport allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects J…EPSS 0.42%4.9CVE-2022-2717Beardev joomsport sql injection vulnerabilityThe JoomSport – for Sports: Team & League, Football, Hockey & more plugin for WordPress is vulnerable to SQL Injection via the 'orderby' parameter on…EPSS 1.5%4.9CVE-2022-2718Beardev joomsport sql injection vulnerabilityThe JoomSport – for Sports: Team & League, Football, Hockey & more plugin for WordPress is vulnerable to SQL Injection via the 'orderby' parameter on…EPSS 1.5%9.8CVE-2021-23758Ajax.NET Professional ajaxpro.2 untrusted deserialization RCEAll versions of the ajaxpro.2 package (Ajax.NET Professional) deserialize untrusted data and permit deserialization of arbitrary .NET classes. That l…KEVEPSS 83%analysed9.8CVE-2026-63077JetBrains TeamCity unauthenticated RCE via agent polling deserializationJetBrains TeamCity before 2026.1.3 and 2025.11.7 deserializes untrusted data received through the agent polling protocol, allowing unauthenticated re…KEVEPSS 9.8%analysed

Source: NIST National Vulnerability Database (record CVE-2021-24384), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.