CVE-2025-9371: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in MuffinGroup Betheme
The Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘page_title’ parameter in all versions up to, and including, 28.1.6 due to insufficient input sanitization and output escaping of theme breadcrumbs. This makes it possible for authenticated attackers, with Contributor-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 Betheme WordPress theme contains a stored cross-site scripting vulnerability (CWE-79) via the 'page_title' parameter in theme breadcrumbs. This flaw allows authenticated users with Contributor or higher privileges to inject arbitrary web scripts that execute in the context of other users viewing the injected pages. The vulnerability affects all versions up to and including 28.1.6. The CVSS 3.1 base score is 6.4, reflecting a network attack vector with low attack complexity, requiring privileges, no user interaction, and impacts confidentiality and integrity with no availability impact. No patch or official fix is currently documented.
Potential Impact
An attacker with Contributor-level or higher access can inject persistent malicious scripts into pages via the 'page_title' parameter. These scripts execute whenever other users access the affected pages, potentially leading to unauthorized actions or data disclosure within the context of the victim's browser session. The vulnerability impacts confidentiality and integrity but does not affect availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit Contributor-level access to trusted users only and consider applying temporary input validation or output escaping controls at the application or web server level if feasible. Monitor for updates from MuffinGroup regarding patches or official mitigations.
CVE-2025-9371: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in MuffinGroup Betheme
Description
The Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘page_title’ parameter in all versions up to, and including, 28.1.6 due to insufficient input sanitization and output escaping of theme breadcrumbs. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Betheme WordPress theme contains a stored cross-site scripting vulnerability (CWE-79) via the 'page_title' parameter in theme breadcrumbs. This flaw allows authenticated users with Contributor or higher privileges to inject arbitrary web scripts that execute in the context of other users viewing the injected pages. The vulnerability affects all versions up to and including 28.1.6. The CVSS 3.1 base score is 6.4, reflecting a network attack vector with low attack complexity, requiring privileges, no user interaction, and impacts confidentiality and integrity with no availability impact. No patch or official fix is currently documented.
Potential Impact
An attacker with Contributor-level or higher access can inject persistent malicious scripts into pages via the 'page_title' parameter. These scripts execute whenever other users access the affected pages, potentially leading to unauthorized actions or data disclosure within the context of the victim's browser session. The vulnerability impacts confidentiality and integrity but does not affect availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit Contributor-level access to trusted users only and consider applying temporary input validation or output escaping controls at the application or web server level if feasible. Monitor for updates from MuffinGroup regarding patches or official mitigations.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-08-22T19:43:31.721Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 68e7a23bba0e608b4f980fbf
Added to database: 10/9/2025, 11:53:31 AM
Last enriched: 4/9/2026, 11:01:01 AM
Last updated: 5/10/2026, 5:48:58 AM
Views: 147
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