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TI-2020-18989 Aliases CVE-2020-36854GHSA-c384-m2mr-c4gg

Async JavaScript <= 2.19.07.14 - Authenticated (Subscriber+) Stored Cross-Site Scripting

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00267 18th percentileScored 2026-11-07
Fix Fixed Async JavaScript (cloughit): 2.20.02.27

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
cloughitAsync JavaScriptbefore 2.20.02.272.20.02.27Patch availableCNA
  • Async JavaScript Vendorcloughit Affected before 2.20.02.27 Fixed in 2.20.02.27 Patch available CNA

Remediation

  • Fix · CNA Async JavaScript (cloughit) Fixed in 2.20.02.27

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-36854
  2. 2026-10-03 Alias added: GHSA-c384-m2mr-c4gg

References

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences