CVE-2026-9626 (GCVE-0-2026-9626)

Vulnerability from cvelistv5 – Published: 2026-07-03 04:30 – Updated: 2026-07-03 04:30
VLAI
Title
JSON API User <= 4.1.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'content' Parameter
Summary
The JSON API User plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'content' parameter of the post_comment API endpoint in versions up to, and including, 4.1.0 This is due to insufficient input sanitization in the post_comment() function, which passes the attacker-controlled comment_content value directly to wp_insert_comment() without applying any HTML sanitization, and additionally allows the caller to set comment_approved=1 to self-approve the comment and bypass moderation. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
parorrey JSON API User Affected: 0 , ≤ 4.1.0 (semver)
Create a notification for this product.
Credits
Yat
Show details on NVD website
To clipboard 

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      "providerMetadata": {
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        "shortName": "Wordfence"
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          "time": "2026-06-17T22:57:05.000Z",
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          "time": "2026-07-02T15:54:16.000Z",
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    "dateReserved": "2026-05-26T17:20:23.199Z",
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  }
}


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