Avada | Website Builder For WordPress & WooCommerce <= 7.16.1 - Reflected Cross-Site Scripting via 'lang' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- 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 Avada | Website Builder For WordPress & WooCommerce theme for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'lang' parameter in all versions up to, and including, 7.16.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The injected value is propagated through Fusion_Multilingual::set_active_language() and concatenated into a URL by Fusion_Settings::get_setting_link() without applying urlencode(), esc_url(), or esc_attr() before being echoed raw into a double-quoted href attribute in the post editor metabox.
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 |
|---|---|---|---|---|---|
| ThemeFusion | Avada | Website Builder For WordPress & WooCommerce | up to 7.16.1 | — | No fix listed | CNA |
- Avada | Website Builder For WordPress & WooCommerce VendorThemeFusion Affected up to 7.16.1 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:theme-fusion:avada:*:*:*:*:*:*:*:* | — | — | ThemeFusion |
- cpe:2.3:a:theme-fusion:avada:*:*:*:*:*:*:*:* Versions — — ·ThemeFusion
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-84925
- 2026-10-03 Alias added: GHSA-7hr3-mm9w-ghgw
References
More ThemeFusion vulnerabilities
- TI-2022-01267 Fusion Builder < 3.6.2 - Unauthenticated SSRF CVSS 3.1CRITICAL 9.8
- TI-2026-05505 Injection in ThemeFusion Avada Builder CVSS 3.1CRITICAL 9.8
- TI-2024-02175 Avada <= 7.11.6 - Unauthenticated Sensitive Information Exposure via Form Uploads Directory Listing CVSS 3.1MEDIUM 5.3
- TI-2024-12389 Avada Theme <= 7.11.13 - Unauthenticated Arbitrary Shortcode Execution CVSS 3.1CRITICAL 9.8
- TI-2026-15146 Avada <= 7.16 and Fusion Builder <= 3.16 - Unauthenticated Remote Code Execution via Arbitrary File Write CVSS 3.1CRITICAL 9.8
- TI-2026-07656 Avada (Fusion) Builder <= 3.15.3 - Unauthenticated Arbitrary File Deletion via Form Entry Value CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-84925 · CVE Program
- CVE-2026-84925 · NVD
- FIRST EPSS
- GHSA-7hr3-mm9w-ghgw · 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