Vulnerability · Published Aug 19, 2026 · Assigned by Patchstack
CVE-2026-73389WordPress Kalles Addons plugin <= 1.0.6 - PHP Object Injection vulnerability
Critical 9.8
In plain English
A critical-severity unsafe deserialization in Kalles Addons from The4. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 53.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Unauthenticated PHP Object Injection in Kalles Addons <= 1.0.6 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The4 | Kalles Addons | n/a – through 1.0.6 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H