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CVE-2026-78292— WordPress Hash Form plugin <= 1.4.1 - PHP Object Injection vulnerability

Quick assessment

Affected
hashthemes Hash Form
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hash Form 1.4.1 及更早版本存在未认证的 PHP 对象注入漏洞。

CVSS 9.8 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-78292

Vulnerability Information
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Vulnerability Title
WordPress Hash Form plugin <= 1.4.1 - PHP Object Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated PHP Object Injection in Hash Form <= 1.4.1 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
hashthemes Hash Form n/a ~ 1.4.1 -

II. Public POCs for CVE-2026-78292

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III. Intelligence Information for CVE-2026-78292

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Vendor Advisories for CVE-2026-78292 (1)

IV. Related Vulnerabilities

Same product: Hash Form
Same vendor: hashthemes
Same weakness: CWE-502

V. Comments for CVE-2026-78292

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