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Public proof of concept

CVE-2026-82901

A public proof of concept exists; no exploitation attested.

  • Published2026-09-26
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2026-09-2619:16CVE publishedNVD

Versions per branch

Products declared by the CNA

As Wordfence, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • themefic Ultra Addons for Contact Form 7other versions: not affected
    Affected
    • ≤ 3.5.50no fix statedsemver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-09-26

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-82901 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-01 01:02 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-09-26
Last Modified
2026-09-28
NVD status
Deferred
GitHub Advisory
GHSA-m2gh-25xj-89p6

Frequently asked questions

What is CVE-2026-82901?

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.

Is CVE-2026-82901 actively exploited?

Active exploitation of CVE-2026-82901 has not been confirmed. Its EPSS score was 4.3% on 2026-11-10, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-82901?

CVE-2026-82901 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record