CVE-2022-2540: The Link Optimizer Lite plugin for WordPress is vulnerable to Cross-Site Request Forgery to Cross-Site Scripti

Q: How do I fix CVE-2022-2540?

link optimizer lite: upgrade to newer than 1.4.5. Exact commands for each OS are on this page.

Q: Is CVE-2022-2540 being exploited?

CVE-2022-2540 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-2540 affect?

CVE-2022-2540 affects link optimizer lite. Severity is high (CVSS 8.8). 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

This month

HIGH 8.8UPGRADE

CVE-2022-2540 is a high-severity flaw (CVSS 8.8) affecting link optimizer lite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-352
Published	2022-09-06
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: link optimizer lite project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-09-06 18:15 UTCPublished CVE record published
2026-06-17 04:42 UTCUpdated Record last modified

link optimizer lite project link optimizer lite UPGRADE

Affected: <= 1.4.5

Fixed in: newer than 1.4.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy link-optimizer-lite || rpm -q link-optimizer-lite || link-optimizer-lite --version

2. UPGRADE to newer than 1.4.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade link-optimizer-lite

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade link-optimizer-lite

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-2540?

link optimizer lite: upgrade to newer than 1.4.5. Exact commands for each OS are on this page.

Is CVE-2022-2540 being exploited?

CVE-2022-2540 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-2540 affect?

CVE-2022-2540 affects link optimizer lite. Severity is high (CVSS 8.8). 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

How urgent is CVE-2022-2540?

Priority 44/100. High severity

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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