---
id: CVE-2026-92807
title: >-
  The Save as PDF Plugin by PDFCrowd plugin for WordPress is vulnerable to
  Arbitrary Function Invocation in all versions up to, and including, 4.6.1 via
  the `pdf_created_callback` shortcode attribute
summary: >-
  The Save as PDF Plugin by PDFCrowd plugin for WordPress is vulnerable to
  Arbitrary Function Invocation in all versions up to, and including, 4.6.1 via
  the `pdf_created_callback` shortcode attribute. The `eval_shortcode()`
  function copies…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
vendor: pdfcrowd
product: Save as PDF Plugin by PDFCrowd
affected:
  - save_as_pdf_plugin_by_pdfcrowd <= 4.6.1
published: '2026-09-19'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T13:33:33.387'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92807'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/save-as-pdf-by-pdfcrowd/tags/4.6.1/public/class-save-as-pdf-pdfcrowd-public.php#L157
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/save-as-pdf-by-pdfcrowd/tags/4.6.1/public/class-save-as-pdf-pdfcrowd-public.php#L1722
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/save-as-pdf-by-pdfcrowd/tags/4.6.1/public/class-save-as-pdf-pdfcrowd-public.php#L867
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/save-as-pdf-by-pdfcrowd/tags/4.6.1/public/class-save-as-pdf-pdfcrowd-public.php#L956
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3701540%40save-as-pdf-by-pdfcrowd&new=3701540%40save-as-pdf-by-pdfcrowd
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/fc87f440-d26e-4535-afe4-c4a97b7c591a?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
epss: 0.00254
epssPercentile: 0.17166
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-19T13:25:13.493506Z'
ingestedAt: '2026-09-19T02:56:32.975Z'
---

## Overview

The Save as PDF Plugin by PDFCrowd plugin for WordPress is vulnerable to Arbitrary Function Invocation in all versions up to, and including, 4.6.1 via the `pdf_created_callback` shortcode attribute. The `eval_shortcode()` function copies any non-`button_`/non-`email_` shortcode attribute verbatim into a custom options array without sanitization, allowlist enforcement, or capability checks, and `create_button()` AES-encrypts that array — including the attacker-supplied callback value — and embeds the resulting blob in the rendered button HTML; when the blob is later POSTed to the unauthenticated `wp_ajax_nopriv_save_as_pdf_pdfcrowd` endpoint, `save_as_pdf_pdfcrowd()` decrypts it and invokes `$options['pdf_created_callback']` as a PHP callable at line 1722 with no `is_callable()` guard, no allowlist, and no capability check. This makes it possible for authenticated attackers, with Contributor-level access and above, to invoke arbitrary PHP functions or static class methods with plugin option data as the sole argument, enabling disclosure of the site's stored PDFCrowd API key and username or further server-side abuse. Note that the encryption boundary does not mitigate this vector because the server itself encrypts the attacker-chosen callback during shortcode rendering, supplying any authenticated Contributor with a cryptographically valid blob that any unauthenticated visitor can subsequently replay to trigger invocation.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.