Vulnerability · Published Jun 15, 2026 · Assigned by Patchstack
CVE-2026-39498WordPress YayMail plugin <= 4.3.3 - PHP Object Injection vulnerability
High 7.2
In plain English
A high-severity unsafe deserialization in YayMail from Yeeaddons. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.4%top 70.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Shop manager PHP Object Injection in YayMail <= 4.3.3 versions.
Affected products (as reported)
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H