CVE-2026-102435Ultra Addons for Contact Form 7 Insecure Deserialization
Ultra Addons for Contact Form 7 <= 3.5.54 - Unauthenticated PHP Object Injection to Arbitrary File Deletion via CF7 Form Field
Published Nov 2, 2026 · Updated Nov 3, 2026 · Also known as 187777a4-3438-489c-ad3b-7e16753189d6, EUVD-2026-115544, GHSA-68fh-vvhf-6vfx, WORDFENCE-187777a4-3438-489c-ad3b-7e16753189d6
Key Facts
Patch immediately- CVE-2026-102435 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting ultimate-addons-for-contact-form-7 (wordpress-plugin), Ultra Addons for Contact Form 7.
- It is exploited in the wild, listed in Industry KEV feed since Nov 4, 2026. No public exploit code is known.
- EPSS estimates a 0.6% probability of exploitation in the next 30 days.
- Fixed versions are available, including ultimate-addons-for-contact-form-7 3.5.55.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
0.6%
Higher than 48.3% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
55/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Nov 4, 2026
2 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Description
The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the _getObjAttr function in all versions up to, and including, 3.5.54. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php).
This requires the PDF Generator add-on to be active and a Contact Form 7 form to be configured for PDF generation, as the WPCF7_Submission POP gadget chain relies on CF7 being present to complete the file deletion via __destruct(). Note: This vulnerability can only be exploited when the PDF generator feature is enabled.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Nov 4, 2026 | n/a | Not reported |
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ultimate-addons-for-contact-form-7wordpress-plugin | See advisory | 3.5.55 |
| Ultra Addons for Contact Form 7 | See advisory | n/a |
Patched Releases
ultimate-addons-for-contact-form-7
3.5.55
Timeline
Publicly disclosed
Nov 2, 2026
Last updated
Nov 3, 2026
Added to Industry KEV feed
Nov 4, 2026
Weakness Type
- CWE-502 Deserialization of Untrusted Data
References
- advisorywordfence.com · 187777a4-3438-489c-ad3b-7e16753189d6
- advisorywordfence.com · 187777a4-3438-489c-ad3b-7e16753189d6
- exploitVulnCheck exploitation report
- otherplugins.svn.wordpress.org · pdf-generator.php
- otherplugins.trac.wordpress.org · ultimate-addons-for-contact-form-7
FAQ
Common Questions.
The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the _getObjAttr function in all versions up to, and including, 3.5.54.
Affected: ultimate-addons-for-contact-form-7 (wordpress-plugin); Ultra Addons for Contact Form 7. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Nov 4, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including ultimate-addons-for-contact-form-7 3.5.55.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2026-102435 On Your Attack Surface?
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