JoomSport <= 5.7.8 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Group Deletion via season_groupdel AJAX action
Strategic Overview
- Status
- Patched in 5.7.9
- Affected Version
<= 5.7.8- CVSS
- 4.3Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2026-12133
At a glance
CVE-2026-12133 is a medium-severity Missing Authorization vulnerability in the JoomSport WordPress plugin, affecting versions <= 5.7.8. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 5.7.9; sites on affected versions should update now. Disclosed June 2026, reported by Chloe Chamberland.
Vulnerability Overview
The JoomSport – for Sports: Team & League, Football, Hockey & more plugin for WordPress is vulnerable to Missing Authorization to Arbitrary Group Deletion in versions up to, and including, 5.7.8. This is due to a missing capability check in the joomsport_season_groupdel() AJAX handler, which only verifies a nonce before executing a DELETE query on attacker-supplied group IDs. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary JoomSport group records.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-862: Missing Authorization
JoomSport <= 5.7.8 carries this weakness at joomsport_season_groupdel(), and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For JoomSport the fix is 5.7.9: builds <= 5.7.8 are affected, anything from 5.7.9 onward is not.
Remediation
Update to version 5.7.9, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: JoomSport 5.7.9 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in JoomSport – for Sports: Team & League, Football, Hockey & more
- 9.8CVE-2025-7721: JoomSport <= 5.7.3 Directory Traversal to LFI
CVE-2025-7721 - 9.8CVE-2022-4050: JoomSport <= 5.2.7 SQL Injection
CVE-2022-4050 - 9.8CVE-2021-24384: JoomSport Object Injection
CVE-2021-24384 - 9.8CVE-2019-14348: JoomSport SQL Injection
CVE-2019-14348 - 7.5CVE-2026-6929: JoomSport <= 5.7.7 SQL Injection
CVE-2026-6929 - 7.5CVE-2026-42647: JoomSport SQL Injection
CVE-2026-42647 - 7.2CVE-2022-2717: JoomSport Authentciated (Admin+) SQL Injection
CVE-2022-2717 - 7.2CVE-2022-2718: JoomSport SQL Injection
CVE-2022-2718
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