Record summary

CVE-2020-36854 has a selected CVSS score of 6.4 (medium).

Description

The Async JavaScript plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 2.19.07.14. This is due to missing authorization checks on the aj_steps AJAX aciton along with a lack on sanitization on the settings saved via the function. This makes it possible for authenticated attackers with subscriber level permissions and above to inject malicious web scripts into a page that execute whenever a user accesses that page.

Description source: CVE List

Exploitation context

Known exploitation

VulnCheck KEV
Listed · Feb 27, 2020 · VulnCheck
Reported exploitation
Observed · VulnCheck

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Oct 20, 2025 · Source: CVE List

Affected products and versions

2
ProductSourceVersion rangeStatus
VulnCheckVersion data not supplied

Default status: unaffected

CVE ListBefore 2.20.02.27affected

References

3