CVE-2025-9821— SSRF via webhook function
Quick assessment
Affected
Mautic Mautic
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.
Mautic是Mautic开源的一款开源的营销自动化软件。该软件能够监控管理网站、发送电子邮件并管理客户资源。 Mautic存在安全漏洞，该漏洞源于未验证webhook目标，可能导致服务端请求伪造。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-9821
Vulnerability Information
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Vulnerability Title
SSRF via webhook function
Source: CVE Program / CVE List V5
Vulnerability Description
SummaryUsers with webhook permissions can conduct SSRF via webhooks. If they have permission to view the webhook logs, the (partial) request response is also disclosed
DetailsWhen sending webhooks, the destination is not validated, causing SSRF.
ImpactBypass of firewalls to interact with internal services.
See https://owasp.org/Top10/A10_2021-Server-Side_Request_Forgery_%28SSRF%29/ for more potential impact.
Resources https://cheatsheetseries.owasp.org/cheatsheets/Server_Side_Request_Forgery_Prevention_Cheat_Sheet.html for more information on SSRF and its fix.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Mautic 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mautic是Mautic开源的一款开源的营销自动化软件。该软件能够监控管理网站、发送电子邮件并管理客户资源。 Mautic存在安全漏洞，该漏洞源于未验证webhook目标，可能导致服务端请求伪造。
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
II. Public POCs for CVE-2025-9821
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2025-9821 (1)
Same Patch Batch · Mautic · 2025-09-03 · 4 CVEs total
| CVE-2025-9824 | 5.9 MEDIUM | User Enumeration via Response Timing |
| CVE-2025-9822 | 5.5 MEDIUM | Secret data extraction via elfinder |
| CVE-2025-9823 | Reflected XSS in lead:addLeadTags - Quick Add |
IV. Related Vulnerabilities
Same product: Mautic
-
CVE-2026-3105
SQL Injection in Contact Activity API Sorting -
CVE-2025-13828
Mautic user without privileged access to the Marketplace can -
CVE-2025-13827
GrapesJsBuilder File Upload allows all file uploads -
CVE-2025-9823
Reflected XSS in lead:addLeadTags - Quick Add -
CVE-2025-9824
User Enumeration via Response Timing
Same vendor: Mautic
-
CVE-2026-3105
SQL Injection in Contact Activity API Sorting -
CVE-2025-13828
Mautic user without privileged access to the Marketplace can -
CVE-2025-13827
GrapesJsBuilder File Upload allows all file uploads -
CVE-2025-9823
Reflected XSS in lead:addLeadTags - Quick Add -
CVE-2025-9824
User Enumeration via Response Timing
Same weakness: CWE-918
-
CVE-2026-69435
Azure SRE Agent Elevation of Privilege Vulnerability -
CVE-2026-107781
Dromara Skyeye Unauthenticated SSRF and File Overwrite via e -
CVE-2026-107394
Indico: Incomplete Server-Side Request Forgery (SSRF) check -
CVE-2026-107698
FFmpeg before 7.1.4 and 8.0.2 SSRF via RTSP Redirect Handlin -
CVE-2026-107362
Server-Side Request Forgery in Malcolm
V. Comments for CVE-2025-9821
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