Vulnerability · Published Aug 18, 2026 · Assigned by Patchstack
CVE-2026-66620WordPress OptionTree plugin <= 2.7.3 - PHP Object Injection vulnerability
High 7.2
In plain English
A high-severity unsafe deserialization in OptionTree from Derek Herman. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.5%top 54.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Editor PHP Object Injection in OptionTree <= 2.7.3 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Derek Herman | OptionTree | n/a – through 2.7.3 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H