How broadly exploitable is this SSRF vulnerability?

Exploitability depends on who can supply logo/icon URLs and what the Wallos server can reach on the network. In many deployments, authenticated users with access to subscription configuration could trigger SSRF, and impact is higher when the server has network access to internal or cloud metadata endpoints.

Does an attacker need privileged access to exploit this issue?

Not necessarily. The attacker typically needs the level of access required to create or edit a subscription or payment logo that accepts a remote URL. If that functionality is available to low-privileged or self-service users, the risk surface is larger.

What is the safest general fix pattern for this type of bug?

The safest pattern is to avoid having the server fetch arbitrary user-specified URLs entirely, or constrain it strictly to trusted domains. If remote fetching is required, disable automatic redirects or implement a controlled redirect handler that revalidates each new target against a robust network policy and blocks internal and metadata ranges.

Severity:

HIGH RISK

(7.7)

Server-Side Request Forgery (CWE-918) via Logo URL Redirects in Wallos Subscription Tracker

CVE-2026-27479

Published:

Feb 21, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-918

Impact:

Unauthorized access to internal network resources and cloud metadata services via server-side HTTP requests

Severity:

HIGH RISK

(7.7)

CVSS Version:

3.1

Vulnerability Type

Category:

Server-Side Request Forgery (SSRF)

CWE:

CWE-918

Impact:

Unauthorized access to internal network resources and cloud metadata services via server-side HTTP requests

Severity:

HIGH RISK

(7.7)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Server-Side Request Forgery (CWE-918) via Logo URL Redirects in Wallos Subscription Tracker

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare