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CVE-2026-12516— Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Media Proxy

Quick assessment

Affected
Unknown Fediverse Embeds
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.

stefanbohacek Fediverse Embeds是stefanbohacek个人开发者的一款嵌入Fediverse社交网络内容的脚本工具。 stefanbohacek Fediverse Embeds 1.5.8之前版本存在服务端请求伪造漏洞，该漏洞源于未验证服务器端请求的目标地址，可能导致未经身份验证的用户获取任意URL（包括内部及私有网络地址）的响应体，从而造成完全的服务器端请求伪造和开放代理。

AI Predicted 7.5 Difficulty: Easy EPSS 0.31% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Fediverse Embeds < 1.5.8 affected
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I. Basic Information for CVE-2026-12516

Vulnerability Information
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Vulnerability Title
Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Media Proxy
Source: CVE Program / CVE List V5
Vulnerability Description
The Fediverse Embeds WordPress plugin before 1.5.8 does not validate the destination of the server-side request performed by an unauthenticated media-proxying endpoint, allowing anonymous users to make the site fetch arbitrary URLs, including internal and private-network addresses, and read back the response body. This results in a full-read Server-Side Request Forgery and open proxy.
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
stefanbohacek Fediverse Embeds 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
stefanbohacek Fediverse Embeds是stefanbohacek个人开发者的一款嵌入Fediverse社交网络内容的脚本工具。 stefanbohacek Fediverse Embeds 1.5.8之前版本存在服务端请求伪造漏洞，该漏洞源于未验证服务器端请求的目标地址，可能导致未经身份验证的用户获取任意URL（包括内部及私有网络地址）的响应体，从而造成完全的服务器端请求伪造和开放代理。
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 Fediverse Embeds 0 ~ 1.5.8 -

II. Public POCs for CVE-2026-12516

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III. Intelligence Information for CVE-2026-12516

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Other References for CVE-2026-12516 (1)

Same Patch Batch · Unknown · 2026-07-09 · 6 CVEs total

CVE-2026-12517 Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Site Info Endpoint
CVE-2026-12270 Everest Forms < 3.5.0 - Unauthenticated Missing Authorization via Site Assistant REST Endp
CVE-2026-11571 Everest Forms < 3.5.0 - Unauthenticated Sensitive Information Exposure via Residual CSV Ar
CVE-2026-11875 WP Support Plus Responsive Ticket System <= 9.1.2 - Unauthenticated Support Ticket Access
CVE-2026-11869 WP DSGVO Tools (GDPR) < 3.1.40 - Unauthenticated Sensitive Information Disclosure via Subj

IV. Related Vulnerabilities

Same product: Fediverse Embeds
Same vendor: Unknown

V. Comments for CVE-2026-12516

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