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CVE-2026-16536— Simple Google Calendar Outlook Events Widget < 3.1.0 - Unauthenticated SSRF via calendar_id

Quick assessment

Affected
Unknown Simple Google Calendar Outlook Events Widget
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.

WordPress Simple Google Calendar Outlook Events Widget是WordPress基金会开源的一款多源日历事件聚合组件。 WordPress Simple Google Calendar Outlook Events Widget 3.1.0之前版本存在服务端请求伪造漏洞，该漏洞源于未验证用户提供的URL即执行服务器端请求，可能导致未经身份验证的攻击者进行服务端请求伪造攻击，在某些情况下读取内部请求的响应。

AI Predicted 8.6 Difficulty: Easy EPSS 0.32% · P23

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Simple Google Calendar Outlook Events Widget < 3.1.0 affected
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I. Basic Information for CVE-2026-16536

Vulnerability Information
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Vulnerability Title
Simple Google Calendar Outlook Events Widget < 3.1.0 - Unauthenticated SSRF via calendar_id
Source: CVE Program / CVE List V5
Vulnerability Description
The Simple Google Calendar Outlook Events Widget WordPress plugin before 3.1.0 does not validate a user-supplied URL before performing a server-side request, allowing unauthenticated attackers to perform Server-Side Request Forgery attacks and, in some cases, read the response of the internal request.
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
WordPress Simple Google Calendar Outlook Events Widget 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Simple Google Calendar Outlook Events Widget是WordPress基金会开源的一款多源日历事件聚合组件。 WordPress Simple Google Calendar Outlook Events Widget 3.1.0之前版本存在服务端请求伪造漏洞，该漏洞源于未验证用户提供的URL即执行服务器端请求，可能导致未经身份验证的攻击者进行服务端请求伪造攻击，在某些情况下读取内部请求的响应。
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 Simple Google Calendar Outlook Events Widget 0 ~ 3.1.0 -

II. Public POCs for CVE-2026-16536

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III. Intelligence Information for CVE-2026-16536

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Vendor Advisories for CVE-2026-16536 (1)

Same Patch Batch · Unknown · 2026-08-04 · 24 CVEs total

CVE-2026-16056 Contest Gallery < 30.0.7 - Subscriber+ OpenAI Prompt History Disclosure via post_cg_get_op
CVE-2026-16618 ImproveSEO <= 2.0.11 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execut
CVE-2026-10526 EmbedPress < 4.6.1 - Unauthenticated Blind SSRF
CVE-2026-11366 MonsterInsights < 11.1.0 - Unauthenticated Measurement Protocol Secret Update via Empty-Ke
CVE-2026-16623 Create Block Theme < 2.10.0 - Admin+ PHP Code Injection via Pattern Save (Multisite)
CVE-2026-12698 wpForo Forum < 3.1.3 - Subscriber+ Account Status and Reputation Manipulation via Profile
CVE-2026-14939 Visualizer: Tables and Charts Manager < 4.0.6 - Contributor+ Server-Side Request Forgery v
CVE-2026-14816 The GDPR Framework < 2.4.0 - Unauthenticated Consent Record Forgery and Do Not Sell Reques
CVE-2026-14872 Database for Contact Form 7, WPforms, Elementor forms < 1.5.5 - Authenticated SQL Injectio
CVE-2026-14824 Quiz And Survey Master < 11.2.2 - Contributor+ Stored XSS via Polar Question
CVE-2026-14848 Paid Member Subscriptions < 3.0.8 - Subscriber+ Cross-User Subscription Hijack via process
CVE-2026-16035 miniOrange 2FA < 6.2.7 - Subscriber+ Arbitrary-Recipient OTP Send
CVE-2026-16296 Clearfy < 2.4.3 - Open Redirect via Cyrlitera 404 Handler
CVE-2026-15233 Nested Pages < 3.2.15 - Editor+ Stored XSS via Post Title
CVE-2026-15958 Easy Dropbox Integration < 2.2.0 - Unauthenticated Arbitrary Connected Dropbox File Access
CVE-2026-16293 Blubrry PowerPress < 11.16.11 - Contributor+ Stored XSS via Podcast Episode Chapters URL
CVE-2026-16068 Brizy - Page Builder < 2.8.19 - Author+ Stored XSS via brizy_set_project Global Project Co
CVE-2026-16069 Brizy - Page Builder < 2.8.19 - Contributor+ Stored XSS via Featured Image Focal Point
CVE-2026-16070 Brizy - Page Builder < 2.8.19 - Contributor+ Template Type Update via IDOR
CVE-2026-16548 Bit Assist < 1.8.2 - Unauthenticated Arbitrary File Upload via Response Endpoint

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-16536

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