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Json Api User vulnerabilities

2 tracked advisories · slug json-api-user

Important: Json Api User appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works

Tracked advisories

2

Latest advisory

2 July 2026

CISA KEV matches

0

In this WordPress feed

WordPress slug

json-api-user

Plugin

What this means for Json Api User

This catalog lists 2 known advisories affecting Json Api User. The most recent was published on 2 July 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.

Latest issues

  • JSON API User <= 4.1.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'content' Parameter

    May allow attackers to run scripts in visitors' browsers or hijack admin sessions.

    Published 2 July 2026

  • JSON API User <= 3.9.3 - Unauthenticated Privilege Escalation

    May allow a lower-privilege user to perform actions reserved for administrators.

    Published 10 July 2024

Vulnerability types

  • Cross-site scripting1
  • Privilege escalation1

Authentication (inferred from titles)

  • Unauthenticated1
  • Authenticated1
  • Unspecified0

Advisory history

Known Json Api User advisories published by month.

All advisories

Check whether your installed version is affected

SiteRespond Defence matches your installed Json Api User version against this catalog when the Defence plugin is connected to your WordPress site.

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