Vulnerability · Published Aug 18, 2026 · Assigned by Patchstack
CVE-2026-66640WordPress Login With Ajax plugin <= 4.5.1 - Cross Site Scripting (XSS) vulnerability
Medium 6.5
In plain English
A medium-severity cross-site scripting in Login With Ajax from Marcus (aka @msykes). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.2%top 86.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Contributor Cross Site Scripting (XSS) in Login With Ajax <= 4.5.1 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Marcus (aka @msykes) | Login With Ajax | n/a – through 4.5.1 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L