CVE-2026-5410: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in davidanderson Redux Framework
The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the spinner field in versions up to, and including, 4.5.13 This is due to insufficient input sanitization and output escaping. In the user_meta_save() function scalar values bypass the sanitization logic that only processes arrays, allowing the spinner field value to be stored in user meta without proper sanitization. Later, at line 56 of class-redux-spinner.php in the render() function, this value is rendered in an unquoted HTML attribute without escaping via '$data_string .= ' data-val=' . $this->value;'. 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.
AI Analysis
Technical Summary
The Redux Framework plugin for WordPress versions up to and including 4.5.13 is vulnerable to stored cross-site scripting due to insufficient sanitization of the spinner field input. Specifically, scalar values bypass sanitization in user_meta_save(), and the value is rendered without escaping in an unquoted HTML attribute in class-redux-spinner.php's render() function. Authenticated attackers with subscriber-level privileges can exploit this to inject arbitrary scripts that execute when the page is viewed.
Potential Impact
An attacker with subscriber-level or higher access can inject persistent malicious scripts into pages via the spinner field. This can lead to cross-site scripting attacks affecting confidentiality and integrity of user data within the affected WordPress site. The CVSS score of 6.4 reflects a medium severity with network attack vector, low attack complexity, and no user interaction required.
Mitigation Recommendations
No explicit patch or official fix is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict user privileges to trusted users only and consider disabling or removing the Redux Framework plugin if possible to mitigate risk.
CVE-2026-5410: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in davidanderson Redux Framework
Description
The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the spinner field in versions up to, and including, 4.5.13 This is due to insufficient input sanitization and output escaping. In the user_meta_save() function scalar values bypass the sanitization logic that only processes arrays, allowing the spinner field value to be stored in user meta without proper sanitization. Later, at line 56 of class-redux-spinner.php in the render() function, this value is rendered in an unquoted HTML attribute without escaping via '$data_string .= ' data-val=' . $this->value;'. 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.
CVSS v3.1
Score 6.4medium
Affected software
davidanderson
Redux Framework
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Redux Framework plugin for WordPress versions up to and including 4.5.13 is vulnerable to stored cross-site scripting due to insufficient sanitization of the spinner field input. Specifically, scalar values bypass sanitization in user_meta_save(), and the value is rendered without escaping in an unquoted HTML attribute in class-redux-spinner.php's render() function. Authenticated attackers with subscriber-level privileges can exploit this to inject arbitrary scripts that execute when the page is viewed.
Potential Impact
An attacker with subscriber-level or higher access can inject persistent malicious scripts into pages via the spinner field. This can lead to cross-site scripting attacks affecting confidentiality and integrity of user data within the affected WordPress site. The CVSS score of 6.4 reflects a medium severity with network attack vector, low attack complexity, and no user interaction required.
Mitigation Recommendations
No explicit patch or official fix is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict user privileges to trusted users only and consider disabling or removing the Redux Framework plugin if possible to mitigate risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-04-02T07:04:02.995Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aae488655bf5e2cf553a402
Added to database: 09/19/2026, 08:32:06 UTC
Last enriched: 09/19/2026, 08:46:56 UTC
Last updated: 09/20/2026, 03:43:40 UTC
Views: 10
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