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Broken Link Manager <= 0.6.5 — Authenticated (Admin+) SQL Injection

CVE-2021-24550Published · Updated

Action summary

Affected: ≤0.6.5No patch available

What to do until a fix ships
Watch plugin
Severity
High7.2
CVSS
7.2
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:H Privileges required
High
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-89 SQL Injection
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Broken Link Manager broken-link-manager

  1. Affected≤ 0.6.5
  2. PatchedNo fix yet

No patched version available.

You are affected if you run ≤ 0.6.5. No fixed version has been released.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Broken Link Manager.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Broken Link Manager to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Shreya Pohekar.

The Broken Link Manager WordPress plugin through 0.6.5 does not sanitise, validate or escape the url GET parameter before using it in a SQL statement when retrieving an URL to edit, leading to an authenticated SQL injection issue

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 Manager

All 5
More vulnerabilities in Broken Link Manager
SeverityVulnerabilityCVEPublished
Medium6.1Reflected Cross-Site Scripting
≤0.6.5No patch available
CVE-2025-12629
Medium6.1Cross-Site Scripting
<0.6.0Update to 0.6.0
CVE-2015-9453
Medium6.1Cross-Site Scripting
≤0.4.5Update to 0.5.0
CVE-2015-9468
Critical9.8SQL Injection
<0.5.0Update to 0.5.0
CVE-2015-9467

Same weakness (SQL Injection)

All SQL Injection
Other SQL Injection vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 7.2

  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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