CVE-2022-2540

Name: CVE-2022-2540
Creator: NVD / NIST
Published: 2022-09-06T18:15:14.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2022-2540 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The Link Optimizer Lite plugin for WordPress is vulnerable to Cross-Site Request Forgery to Cross-Site Scripting in versions up to, and including 1.4.5. This is due to missing nonce validation on the admin_page function found in the ~/admin.php file. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

The Link Optimizer Lite plugin for WordPress is vulnerable to Cross-Site Request Forgery to Cross-Site Scripting in versions up to, and including 1.4.5. This is due to missing nonce validation on the admin_page function found in the ~/admin.php file. This makes it possible for unauthenticated attackers to modify the plugin's settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.50%

38.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Link Optimizer Lite Project	Link Optimizer Lite	<= 1.4.5

References

https://plugins.trac.wordpress.org/browser/link-optimizer-lite/1.4.5/admin.php#L20Patch, Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/ca64692b-b194-4ceb-975e-72e4041252f2?source=cve
https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2540Third Party Advisory
https://plugins.trac.wordpress.org/browser/link-optimizer-lite/1.4.5/admin.php#L20Patch, Third Party Advisory
https://www.wordfence.com/threat-intel/vulnerabilities/id/ca64692b-b194-4ceb-975e-72e4041252f2?source=cve
https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2540Third Party Advisory

Timeline

Published: Sep 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-2540?

How severe is CVE-2022-2540?

CVE-2022-2540 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2022-2540?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-2540?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST