Ajax Search Lite Plugin up to 4.14.4 on WordPress deserialization

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k1.62-

Summaryinfo

A vulnerability was found in Ajax Search Lite Plugin up to 4.14.4. It has been rated as critical. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in deserialization. This vulnerability is known as CVE-2026-16258. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Ajax Search Lite Plugin up to 4.14.4. It has been classified as critical. This affects an unknown function. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at wpscan.com. This vulnerability is uniquely identified as CVE-2026-16258 since 07/20/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 4.14.5 eliminates this vulnerability.

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Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Ajax Search Lite Plugin 4.14.5

Timelineinfo

07/20/2026 CVE reserved
08/07/2026 +18 days Advisory disclosed
08/07/2026 +0 days VulDB entry created
08/07/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wpscan.com
Status: Confirmed

CVE: CVE-2026-16258 (🔒)
GCVE (CVE): GCVE-0-2026-16258
GCVE (VulDB): GCVE-100-386925

Entryinfo

Created: 08/07/2026 08:19
Changes: 08/07/2026 08:19 (54)
Complete: 🔍
Cache ID: 216::103

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