Ultra Addons for Contact Form 7 <= 3.5.54 - Unauthenticated Arbitrary File Read via CF7 Field Value in mPDF WriteHTML SVG Parser
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Not reported
- Last modified
- Whether it needs action now or is a reference record, by fixed rules, with why. Last checked is when cve.now last re-read it.What do these mean? →
- Reference
- Last checked
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 0.83% · 58th percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 33/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
Ultra Addons for Contact Form 7 WordPress plugin, through version 3.5.54, has a directory traversal flaw that lets an attacker read the contents of arbitrary files on the server, which may include sensitive information. The attack can be carried out remotely by an unauthenticated user, but it only works when the PDF Generator addon is active and an administrator has enabled a PDF body template for the targeted form.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
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.
cve.now Index
- Exploitation0/40No signal
- Exposure20/25No login or user action needed per the CVSS vector, CISA rates it automatable · Unknown: No advisory context yet
- Reach?/20Unknown. No tracked technology or package matched
- Severity7.5/10CVSS 7.5
- No patch5/5No patch listed yet
What would change the score
- Would score about 78 if added to CISA KEV
- Would score about 73 if CISA's SSVC rates exploitation active
- Would score about 38 if advisories confirm default setups are exposed
Check your systems with an agent
Paste this into a coding or ops agent. It checks your systems read-only and reports a table per asset.
Check whether my systems are affected by 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), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-100386 (entry last updated 2026-11-10): Affected: - themefic Ultra Addons for Contact Form 7: through 3.5.54 Fixed versions: none listed yet. Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. CISA KEV: CVE-2026-100386 is not listed as of cve.now's last read. This KEV status is for CVE-2026-100386 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://www.wordfence.com/threat-intel/vulnerabilities/id/a52d6222-688f-4300-b53d-db2cc31f924a?source=cve - https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.50/addons/pdf-generator/pdf-generator.php#L625 - https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L963 - https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L625 - https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L782 - https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.52/addons/pdf-generator/pdf-generator.php#L950 - https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.50/addons/pdf-generator/pdf-generator.php#L963 - https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.50/addons/pdf-generator/pdf-generator.php#L782 Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-100386 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-100386.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- themefic Ultra Addons for Contact Form 7
through 3.5.54
Evidence 13
CVE record · 2
Establishes: The identifier and description.
- Record
- Record
Other links · 11
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Corrections
None so far.
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Questions about CVE-2026-100386
Is CVE-2026-100386 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-100386?
Ultra Addons for Contact Form 7: through 3.5.54.Source: cve.now feed data