Ajax Search Lite < 4.14.5 - Unauthenticated PHP Object Injection via Search Statistics REST Endpoint
Priority HIGH 82CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-502.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00849 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Ajax Search Lite (Unknown): 4.14.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Ajax Search Lite | before 4.14.5 | 4.14.5 | Patch available | CNA |
- Ajax Search Lite VendorUnknown Affected before 4.14.5 Fixed in 4.14.5 Patch available CNA
Remediation
- Fix · CNA Ajax Search Lite (Unknown) Fixed in 4.14.5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16258
- 2026-10-03 Alias added: GHSA-m7vw-4232-p79x
References
Sources
- CVE-2026-16258 · CVE Program
- CVE-2026-16258 · NVD
- FIRST EPSS
- GHSA-m7vw-4232-p79x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences