Vulnerability-Lookup

CVE-2026-28139 (GCVE-0-2026-28139)

Vulnerability from cvelistv5 – Published: 2026-08-06 14:27 – Updated: 2026-08-06 14:46

Title

WordPress Ajax Search Lite plugin <= 4.14.4 - PHP Object Injection vulnerability

Summary

Unauthenticated PHP Object Injection in Ajax Search Lite <= 4.14.4 versions.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-06 14:46 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

Patchstack mitre root

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/plugin/…	vdb-entry

Impacted products

1 product

Vendor	Product	Version	CPE status
wpdreams	Ajax Search Lite	Affected: n/a , ≤ 4.14.4 (custom)	guessed

Credits

hhhai | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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CNVD-2026-32209

Vulnerability from cnvd - Published: 2026-08-17

Title

WordPress Ajax Search Lite PHP对象注入漏洞

Description

WordPress Ajax Search Lite是一款由wpdreams开发的免费WordPress插件，通过AJAX技术实现‌实时输入即显结果‌的搜索体验，可替代默认搜索并支持自定义内容类型与字段。 WordPress Ajax Search Lite存在PHP对象注入漏洞，该漏洞源于Ajax Search Lite在对用户提供的序列化数据进行反序列化时缺乏严格的数据验证，攻击者可利用该漏洞在无需身份认证的情况下注入恶意PHP对象，实现远程代码执行，从而完全控制受影响的WordPress站点。

Severity

高

Patch Name

WordPress Ajax Search Lite PHP对象注入漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://wordpress.org/plugins/ajax-search-lite/

Reference

https://patchstack.com/database/wordpress/plugin/ajax-search-lite/vulnerability/wordpress-ajax-search-lite-plugin-4-14-4-php-object-injection-vulnerability?_s_id=cve

Impacted products

Name
WordPress Ajax Search Lite <=4.14.4

Show details on source website

JSON

To clipboard

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FKIE_CVE-2026-28139

Vulnerability from fkie_nvd - Published: 2026-08-06 15:16 - Updated: 2026-08-12 20:58

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

Unauthenticated PHP Object Injection in Ajax Search Lite <= 4.14.4 versions.

References

	URL	Tags
	audit@patchstack.com	https://patchstack.com/database/wordpress/plugin/ajax-search-lite/vulnerability/wordpress-ajax-search-lite-plugin-4-14-4-php-object-injection-vulnerability?_s_id=cve

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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GHSA-FGGQ-3FV5-W95M

Vulnerability from github – Published: 2026-08-06 15:32 – Updated: 2026-08-06 15:32

Details

Unauthenticated PHP Object Injection in Ajax Search Lite <= 4.14.4 versions.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-28139"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-06T15:16:52Z",
    "severity": "CRITICAL"
  },
  "details": "Unauthenticated PHP Object Injection in Ajax Search Lite \u003c= 4.14.4 versions.",
  "id": "GHSA-fggq-3fv5-w95m",
  "modified": "2026-08-06T15:32:45Z",
  "published": "2026-08-06T15:32:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28139"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/wordpress/plugin/ajax-search-lite/vulnerability/wordpress-ajax-search-lite-plugin-4-14-4-php-object-injection-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-28139 (GCVE-0-2026-28139)

CNVD-2026-32209

FKIE_CVE-2026-28139

GHSA-FGGQ-3FV5-W95M

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Sightings

Nomenclature

Related by attack behaviour