6.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-3566

CVE-2023-3566: Wallabag vulnerable to Allocation of Resources Without Limits or Throttling

A vulnerability was found in wallabag 2.5.4. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /config of the component Profile Config. The manipulation of the argument Name leads to allocation of resources. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-233359. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2023-3566

CVE-2023-3566:

6.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
wallabag/wallabag	composer	<= 2.5.4

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability manifests in the profile configuration component at /config where user-supplied 'Name' parameter input is processed. The lack of length validation() in the profile update function enables attackers to submit arbitrarily long strings (up to 1M characters), leading to memory exhaustion. This matches the CWE-770 pattern of resource allocation without limits. The controller action handling profile updates (likely named updateProfileAction in Symfony convention) would be responsible for processing this input. The high confidence comes from: 1) Explicit POC demonstrating parameter manipulation at /config endpoint 2) Vulnerability pattern matching unvalidated input handling in profile configuration 3) Symfony framework conventions for controller naming and structure 4) Component/file alignment with disclosed vulnerability location.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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