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CVE-2026-10749— Post Duplicator < 3.0.15 - Contributor+ PHP Object Injection via customMetaData

Quick assessment

Affected
Unknown Post Duplicator
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.

metaphorcreations post duplicator是metaphorcreations个人开发者的一款WordPress内容复制插件。 Metaphor Creations Post Duplicator 3.0.15之前版本存在反序列化漏洞，该漏洞源于在复制文章时未安全处理自定义元数据，存储攻击者提供的序列化值且未使用WordPress元数据API的双序列化保护，可能导致具有贡献者及以上权限的用户注入PHP对象。

AI Predicted 6.2 Difficulty: Hard EPSS 0.54% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Post Duplicator < 3.0.15 affected
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I. Basic Information for CVE-2026-10749

Vulnerability Information
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Vulnerability Title
Post Duplicator < 3.0.15 - Contributor+ PHP Object Injection via customMetaData
Source: CVE Program / CVE List V5
Vulnerability Description
The Post Duplicator WordPress plugin before 3.0.15 does not safely handle custom meta-data during post duplication, storing attacker-supplied serialized values without the WordPress meta API's double-serialization protection, allowing users with Contributor-level access and above to inject a PHP Object.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Metaphor Creations Post Duplicator 反序列化漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
metaphorcreations post duplicator是metaphorcreations个人开发者的一款WordPress内容复制插件。 Metaphor Creations Post Duplicator 3.0.15之前版本存在反序列化漏洞，该漏洞源于在复制文章时未安全处理自定义元数据，存储攻击者提供的序列化值且未使用WordPress元数据API的双序列化保护，可能导致具有贡献者及以上权限的用户注入PHP对象。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Post Duplicator 0 ~ 3.0.15 -

II. Public POCs for CVE-2026-10749

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III. Intelligence Information for CVE-2026-10749

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Vendor Advisories for CVE-2026-10749 (1)

Same Patch Batch · Unknown · 2026-06-24 · 6 CVEs total

CVE-2026-9710 Themeco Cornerstone < 7.8.8 (Premium, bundled with X Theme) - Subscriber+ Arbitrary User P
CVE-2026-9709 Themeco Cornerstone < 7.8.9 (Premium, bundled with X Theme) - Subscriber+ Arbitrary User M
CVE-2026-10531 AI Share & Summarize < 2.0.4 - Contributor+ Stored XSS via title_style Shortcode Attribute
CVE-2026-10753 Site Kit by Google < 1.176.0 - Editor+ Email Reporting Settings Update
CVE-2026-10735 ShapedPlugin Multiple Pro Plugins - Backdoor via Compromised Vendor Update Server

IV. Related Vulnerabilities

Same product: Post Duplicator
Same vendor: Unknown

V. Comments for CVE-2026-10749

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