Betheme <= 28.1.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'page_title'
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MuffinGroup | Betheme | up to 28.1.6 | — | No fix listed | CNA |
- Betheme VendorMuffinGroup Affected up to 28.1.6 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:muffingroup:betheme:*:*:*:*:*:*:*:* | — | — | MuffinGroup |
- cpe:2.3:a:muffingroup:betheme:*:*:*:*:*:*:*:* Versions — — ·MuffinGroup
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9371
- 2026-10-03 Alias added: GHSA-p5vm-vjvh-m7v5
References
More MuffinGroup vulnerabilities
- TI-2026-46718 WordPress Betheme theme <= 28.4.2 - Remote Code Execution (RCE) vulnerability CVSS 3.1CRITICAL 9.9
- TI-2022-03539 Betheme <= 26.5.1.4 - Authenticated (Subscriber+) PHP Object Injection CVSS 3.1HIGH 8.8
- TI-2022-03442 Becustom <= 1.0.5.2 - Cross-Site Request Forgery CVSS 3.1HIGH 8.8
- TI-2026-05490 Betheme <= 28.4 - Authenticated (Author+) Arbitrary File Upload to Remote Code Execution via Icon Pack Upload CVSS 3.1HIGH 8.8
- TI-2024-02509 Betheme <= 27.5.6 - Authenticated (Contributor+) PHP Object Injection CVSS 3.1HIGH 8.8
- TI-2022-22322 WordPress Betheme premium theme <= 26.6.1 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2025-9371 · CVE Program
- CVE-2025-9371 · NVD
- FIRST EPSS
- GHSA-p5vm-vjvh-m7v5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences