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WordPress plugin

Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links <= 1.2.5 — Missing Authorization to Authenticated (Contributor+) Arbitrary Post Trashing

CVE-2025-11734Published · Updated

Action summary

Affected: ≤1.2.5Update to 1.2.6 or newer

All remediation steps
Watch plugin
Severity
Medium5.4
CVSS
5.4
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:L Integrity
Low
A:L Availability
Low
Weakness
CWE-862 Missing Authorization
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Broken Link Checker by AIOSEO – Find & Fix Broken Internal, External & Video Links broken-link-checker-seo

  1. Affected≤ 1.2.5
  2. Patched in1.2.6

Update to 1.2.6 or newer.

You are affected if you run ≤ 1.2.5. Version 1.2.6 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Broken Link Checker by AIOSEO – Find & Fix Broken Internal, External & Video Links.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 1.2.6, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Broken Link Checker by AIOSEO – Find & Fix Broken Internal, External & Video Links to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Lucas Montes (NiRoX).

The Broken Link Checker by AIOSEO – Easily Fix/Monitor Internal and External links plugin for WordPress is vulnerable to unauthorized post modification due to missing authorization in all versions up to, and including, 1.2.5. This is due to the plugin registering a REST API endpoint that only checks for a broad capability (aioseo_blc_broken_links_page) that is granted to contributor level users, without verifying the user's permission to perform actions on the specific post being targeted. This makes it possible for authenticated attackers, with contributor level access and above, to trash arbitrary posts via the DELETE /wp-json/aioseoBrokenLinkChecker/v1/post endpoint.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Broken Link Checker by AIOSEO – Find & Fix Broken Internal, External & Video Links

All 3
More vulnerabilities in Broken Link Checker by AIOSEO – Find & Fix Broken Internal, External & Video Links
SeverityVulnerabilityCVEPublished
Medium6.5Authenticated (Author+) SQL Injection
≤1.2.6Update to 1.2.7
CVE-2025-67962
Medium6.5Authenticated (Contributor+) SQL Injection
≤1.2.3Update to 1.2.4
CVE-2025-1264

Same weakness (Missing Authorization)

All Missing Authorization
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CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
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CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 5.4

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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