Vulnerability · Published Aug 7, 2026 · Assigned by WPScan
CVE-2026-16258Ajax Search Lite < 4.14.5 - Unauthenticated PHP Object Injection via Search Statistics REST Endpoint
Critical 9.8
In plain English
A critical-severity unsafe deserialization in Ajax Search Lite from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 41.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
The Ajax Search Lite WordPress plugin before 4.14.5 does not prevent the deserialization of untrusted input, allowing unauthenticated attackers to perform PHP Object Injection. When a suitable POP chain is present via another installed Ajax Search Lite WordPress plugin before 4.14.5 or , this can be leveraged to achieve Remote Code Execution.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Ajax Search Lite | 0 – before 4.14.5 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://wpscan.com/vulnerability/8487a2ce-cb4d-46b8-942e-334ac94cf115/ exploit, vdb-entry, technical-description