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OpenSupports CVE-2025-10695

| EUVDEUVD-2025-32434 MEDIUM
Server-Side Request Forgery (SSRF) (CWE-918)
2025-10-03 help@fluidattacks.com
6.9
CVSS 4.0 · Vendor: fluidattacks
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach exposed diagnostic endpoint
  2. Delivery
    Submit attacker-controlled destination URL
  3. Exploit
    Backend initiates outbound connection
  4. Execution
    Enumerate internal hosts and services
  5. Impact
    Interact with internal-only services

Vulnerability Assessment

Weakness
CWE
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.

Exploitation Conditions

No special configuration is required beyond the product being deployed with network-reachable exposure: the two diagnostic endpoints are shipped with permission => 'any', so exploitation works against default installations of OpenSupports 4.11.0 without authentication or user interaction. The practical limiting factors are (1) the OpenSupports instance (and specifically these diagnostic endpoints) must be reachable by the attacker over the network, and (2) impact is bounded to SSRF-style internal network scanning and service interaction - there is no direct data modification or availability impact, and value derived depends on the sensitivity of internal services reachable from the backend.

Impact

This is a genuine but moderate-priority issue, best characterized as a high-signal-but-low-urgency flaw rather than a top-tier emergency. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms network-reachable, low-complexity, unauthenticated exploitation with no user interaction, which aligns perfectly with the description of two diagnostic endpoints exposed with permission => 'any'. However, the technical impact is deliberately scoped low: only VC:L (limited confidentiality, i.e. internal reconnaissance / service interaction) with VI:N and VA:N, and no scope change to subsequent systems (SC:N/SI:N/SA:N), yielding the base score of 6.9. The supporting signals pull toward lower real-world urgency: EPSS is only 0.05% (16th percentile), indicating very low predicted exploitation volume, and the CVE is NOT on the CISA KEV list, so there is no evidence of active exploitation. The one elevating factor is that public exploit code exists (Fluid Attacks advisory), making opportunistic use plausible. There is no contradiction between the CVSS vector and the description - both clearly describe remote unauthenticated SSRF. Net assessment: a legitimately exploitable unauthenticated SSRF with a working POC, but constrained to a niche product with low measured exploitation probability, so it warrants timely patching rather than crisis response.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends a request to one of the two exposed diagnostic endpoints (permission => 'any') supplying an internal destination, causing the OpenSupports backend to initiate a connection to that target. The attacker uses this to map internal hosts/ports and interact with internal-only services that are otherwise unreachable from the internet. A public proof-of-concept exploit exists via the Fluid Attacks advisory, lowering the barrier to opportunistic abuse.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv2 – Oct 19, 2026

Server-side request forgery in OpenSupports 4.11.0 lets unauthenticated remote attackers force the backend to initiate arbitrary network connections to attacker-chosen destinations through two diagnostic endpoints that ship with permission => 'any'. Exploitation enables internal network scanning and interaction with services reachable from the OpenSupports host, but the assessed impact is limited to low confidentiality with no integrity or availability effect. Publicly available exploit code exists; EPSS is 0.05% (16th percentile) and there is no CISA KEV listing confirming active exploitation.

Earlier versions of this analysis (1)
v1 Mar 13, 2026 - 19:29 CVSS 5.3

RemediationAI

No vendor-released patch identified at time of analysis. Check the OpenSupports repository (https://github.com/opensupports/opensupports) and the Fluid Attacks advisory (https://fluidattacks.com/advisories/freer) for an update. Until a fix is available, remove or disable the two diagnostic endpoints if they are not operationally required, or place them behind authentication/authorization and restrict access to trusted administrators; this reduces exposure but may remove diagnostic functionality. Enforce egress filtering/allowlisting so the OpenSupports backend cannot reach internal management networks except required services; the trade-off is possible breakage of legitimate outbound integrations. Segment the OpenSupports host so SSRF from it cannot reach sensitive internal services; this requires network changes but limits scanning and service interaction. Monitor for suspicious outbound requests from the OpenSupports server.

Affected VersionsENISA

OpenSupports 4.11.0

Affected Packages

euvd opensupports no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Technical ContextAI · show details

OpenSupports is an open-source help-desk/ticketing system. CVE-2025-10695 is a CWE-918 server-side request forgery flaw caused by two diagnostic endpoints that accept user-supplied destination parameters and perform backend-initiated network requests without adequate validation, authentication, or destination allowlisting; the endpoints are exposed with permission => 'any'. The source CVSS 4.0 vector shows PR:N/UI:N, and the independent assessment uses CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, meaning no credentials or user interaction are required and the effect is low confidentiality only. CPE cpe:2.3:a:opensupports:opensupports:4.11.0:*:*:*:*:*:*:* identifies the affected release. Practical risk depends on what internal services the OpenSupports backend can reach.

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Severity by source

Vendor (fluidattacks) PRIMARY 6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
vuln.today AI 5.3 MEDIUM

Endpoints are permission => 'any', so remote and unauthenticated (AV:N/PR:N/AC:L); SSRF yields limited confidentiality via internal recon (C:L) with no integrity or availability impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (fluidattacks).

CVSS VectorVendor: fluidattacks

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
Low
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

4
CVSS changed
Oct 19, 2026 - 16:23 NVD
5.3 (MEDIUM) 6.9 (MEDIUM)
PoC Detected
Dec 22, 2025 - 13:45 vuln.today
Public exploit code
CVE Published
Oct 03, 2025 - 21:15 cve.org
MEDIUM 6.9
CVE Published
Oct 03, 2025 - 21:15 nvd
MEDIUM 5.3

DescriptionCVE.org

Two unauthenticated diagnostic endpoints allow arbitrary backend-initiated network connections to an attacker‑supplied destination. Both endpoints are exposed with permission => 'any', enabling unauthenticated SSRF for internal network scanning and service interaction.

This issue affects OpenSupports: 4.11.0.

Executive ViewAI

Why It Matters

CVE-2025-10695 presents moderate security risk, a server-side request forgery vulnerability rated CVSS 5.3. Users could be tricked into performing unintended actions. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: implement egress filtering, block metadata endpoints.

Threat Intelligence Overview

EPSS Score
0.1%
Top 84% exploitable
Prevalence
Low
niche open-source help-desk/ticketing software, limited enterprise deployment footprint
Exploit
POC
Public exploit code exists
Data Quality
5 sources
Confidence: Medium

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 MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Low

Priority Score

54
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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

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