WP Vulnerability WatchVulnerability data as of September 7, 2026

Known vulnerabilities in Async JavaScript

Async Javascript lets you add 'async' or 'defer' attribute to scripts to exclude to help increase the performance of your WordPress website.

2Reported vulnerabilities
6.4Highest CVSS score
2.21.08.31Latest version
70,000+Active installs

What to do now

Update Async JavaScript to 2.21.06.29 or later. 2 of these have a fixed version available. Updating resolves them.

Plugin last updated: June 22, 2023 / Tested up to WordPress: 6.2.11 / View on wordpress.org

This plugin has not been updated in over two years. New vulnerabilities may never be fixed. Consider an alternative.

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVESeverityExploit probability
next 30 days		 Affected versionsFixed inPublished
CVE-2020-36854 Medium 6.4 0.2% Before 2.20.02.27 2.20.02.27 February 27, 2020
WF-d0586453-76ec-4ec9-9965-780af7cb31ec Medium 5.5 — 2.20.12.09 and earlier 2.21.06.29 June 13, 2021

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.