Vulnerability · Published Aug 6, 2026 · Assigned by Patchstack
CVE-2026-65556WordPress WPBruiser {no- Captcha anti-Spam} plugin <= 3.1.43 - PHP Object Injection vulnerability
Critical 9.8
In plain English
A critical-severity unsafe deserialization in WPBruiser {no- Captcha anti-Spam} from MihChe. 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 WPBruiser {no- Captcha anti-Spam} <= 3.1.43 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MihChe | WPBruiser {no- Captcha anti-Spam} | n/a – through 3.1.43 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H