---
id: CVE-2026-3552
title: >-
  The SurfLink - Ultimate Link Manager plugin for WordPress is vulnerable to
  unauthorized data modification due to a missing capability check on the
  ajax_import_410() function in all versions up to 2.6.0
summary: >-
  The SurfLink - Ultimate Link Manager plugin for WordPress is vulnerable to
  unauthorized data modification due to a missing capability check on the
  ajax_import_410() function in all versions up to 2.6.0. This is due to a
  missing capabilit…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-862
published: '2026-07-11'
updated: '2026-07-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-3552'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/surflink/tags/2.4.1/includes/class-surfl-410.php#L32
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/surflink/tags/2.4.1/includes/class-surfl-410.php#L513
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/surflink/tags/2.4.1/includes/class-surfl-410.php#L585
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/surflink/trunk/includes/class-surfl-410.php#L32
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/surflink/trunk/includes/class-surfl-410.php#L513
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/surflink/trunk/includes/class-surfl-410.php#L585
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3542304%40surflink&new=3542304%40surflink
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/22e0060d-7852-4326-98bc-1c49bebe6205?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00371
epssPercentile: 0.30814
ingestedAt: '2026-07-11T23:16:20.477Z'
---

## Overview

The SurfLink - Ultimate Link Manager plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the ajax_import_410() function in all versions up to 2.6.0. This is due to a missing capability check (current_user_can()) and missing nonce verification (check_ajax_referer()) in the ajax_import_410() function, while all other AJAX handlers in the same class (ajax_add_single_410, ajax_save_editted_410, ajax_delete_410, ajax_bulk_410_delete, ajax_empty_410, ajax_export_410) properly implement both authorization and nonce checks. This makes it possible for authenticated attackers, with Subscriber-level access and above, to import arbitrary URLs into the 410 Gone database table via the surfl_import_410 AJAX action. Injected URLs will cause the site to return HTTP 410 Gone responses to all visitors accessing those paths, potentially causing denial of service for legitimate pages and SEO damage through search engine delisting.

## Remediation

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