What is the CVSS score of EUVD-2025-200089?

EUVD-2025-200089 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for EUVD-2025-200089?

Yes, a public proof-of-concept exploit is available for EUVD-2025-200089. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate EUVD-2025-200089?

Within 24 hours: Inventory all PublicCMS V5.202506.b instances and restrict network access to the chat interface via firewall rules. Within 7 days: Implement Web Application Firewall (WAF) rules to block malicious SSRF payloads targeting the SimpleAiAdminController endpoint, disable the chat feature if non-essential, or isolate affected systems from sensitive internal networks. Within 30 days: Develop a migration plan to upgrade to a patched version when available, or evaluate alternative solutions; conduct a security audit of chat interface logs for signs of exploitation.

Publiccms EUVD-2025-200089

| CVE-2025-65836 CRITICAL

Server-Side Request Forgery (SSRF) (CWE-918)

2025-12-01 cve@mitre.org

SSRF Publiccms

9.1

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-918 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V4 - API and Web Service URL allowlisting, SSRF prevention MITRE ATT&CK 2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	Access to internal services, cloud metadata endpoints, or other resources not intended to be publicly accessible. Can lead to data exfiltration or further exploitation. With a CVSS score of 9.1 (CRITICAL), this represents a critical risk.
Exploit ScenarioDerived	An attacker provides a URL pointing to an internal service (e.g., http://169.254.169.254/latest/meta-data/) through a vulnerable parameter, causing the server to fetch and return internal data.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

PublicCMS V5.202506.b is vulnerable to SSRF. in the chat interface of SimpleAiAdminController.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 13:34 CVSS 9.1

RemediationAI

Validate and whitelist allowed URLs and IP ranges. Block requests to internal/private IP ranges. Use network segmentation to limit server-side request scope.

Affected VersionsENISA

n/a n/a

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Server-Side Request Forgery allows an attacker to induce the server to make HTTP requests to arbitrary destinations, including internal services. This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918).

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

PoC Detected

Dec 04, 2025 - 18:09 vuln.today

Public exploit code

CVE Published

Dec 01, 2025 - 20:15 nvd

CRITICAL 9.1

Executive ViewAI

Why It Matters

PublicCMS V5.202506.b contains a critical Server-Side Request Forgery (SSRF) vulnerability in its chat interface that allows attackers to bypass network controls and access internal systems. With public exploits available and no vendor patch released, this poses an immediate risk to organizations running affected versions, potentially enabling unauthorized access to sensitive internal resources and data exfiltration.

Business Impact: Severe

Compensating Controls

Implement WAF rules to filter SSRF payloads in chat requests; disable the chat feature entirely if not critical; apply network segmentation to isolate PublicCMS from internal systems and sensitive resources; restrict outbound connections from the application to approved destinations only; enable enhanced logging and monitoring of SimpleAiAdminController endpoints for exploitation attempts; implement IP-based access controls limiting chat interface access to authorized users/networks.

Threat Intelligence Overview

EPSS Score

0.1%

Top 84% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +46

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Server-Side Request Forgery HIGH

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

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References

Advisories & patches

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-65836 REF https://github.com/sanluan/PublicCMS

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