# CVE-2026-100386: Ultra Addons for Contact Form 7 <= 3.5.54 - Unauthenticated Arbitrary File Read via CF7 Field Value in mPDF WriteHTML SVG Parser

Status: published. Published: 2026-11-10. Updated: 2026-11-10.

The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.5.54 via the uacf7_wpcf7_mail_components function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires the PDF Generator addon to be active and an administrator-configured PDF body template to be enabled for the targeted contact form.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- themefic / Ultra Addons for Contact Form 7: ≥ 0; ≤ 3.5.54 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: Wordfence

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/a52d6222-688f-4300-b53d-db2cc31f924a?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.50/addons/pdf-generator/pdf-generator.php#L625 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L963 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L625 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L782 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L950 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.50/addons/pdf-generator/pdf-generator.php#L963 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.50/addons/pdf-generator/pdf-generator.php#L782 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.50/addons/pdf-generator/pdf-generator.php#L950 (CNA: Wordfence)

- https://downloads.wordpress.org/plugin/ultimate-addons-for-contact-form-7.zip (CNA: Wordfence)

- https://plugins.trac.wordpress.org/changeset/3738548/ultimate-addons-for-contact-form-7/trunk/addons/pdf-generator/pdf-generator.php (CNA: Wordfence)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-100386; retrieved 2026-11-10; source updated 2026-11-10

Revision: f966ac8398078b6efcd0555ef26be5521503cfc03fc251faff29d07df33caf04

Canonical: https://y2.dev/cve/CVE-2026-100386

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.