Ultra Addons for Contact Form 7 <= 3.5.50 - Unauthenticated Arbitrary File Upload via Signature Form Field
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Arbitrary File Upload due to insufficient file type validation in the 'uacf7_wpcf7_mail_components' function in all versions up to, and including, 3.5.50. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: This is only exploitable when the plugin's PDF Generator module is enabled, which is disabled by default.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-82901
- 2026-10-03 Alias added: GHSA-m2gh-25xj-89p6
- 2026-10-25 EPSS moved to the 90th–95th percentile
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/872e1a05-aacc-44fa-93c1-8c3f7b2fb46d?source=cve
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L133
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L192
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L300
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L608
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L807
- https://plugins.trac.wordpress.org/changeset/3698232/ultimate-addons-for-contact-form-7
More Themefic vulnerabilities
- TI-2023-02626 Ultimate Addons for Contact Form 7 < 3.1.29 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2023-02625 Ultimate Addons for Contact Form 7 < 3.1.29 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2026-83954 Arbitrary file deletion in Ultra Addons for Contact Form 7 CVSS 3.1CRITICAL 9.8
- TI-2024-19308 WordPress Tourfic plugin <= 2.11.15 - Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 9.9
- TI-2022-23624 WordPress Ultimate Addons for Contact Form 7 Plugin <= 3.1.23 is vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
- TI-2025-30046 WordPress BEAF plugin <= 4.6.10 - Arbitrary File Upload Vulnerability CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-82901 · CVE Program
- CVE-2026-82901 · NVD
- FIRST EPSS
- GHSA-m2gh-25xj-89p6 · 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