4.3
MEDIUM CVSS 3.1
CVE-2021-47208
Mojolicious Denial of Service Vulnerability
Description

The Mojolicious module before 9.11 for Perl has a bug in format detection that can potentially be exploited for denial of service.

INFO

Published Date :

April 8, 2024, 12:15 a.m.

Last Modified :

May 5, 2025, 5:50 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2021-47208 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mojolicious mojolicious
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
This information is provided by the 3rd party feeds.
  • There is no known solution at this time.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-47208.

URL Resource
https://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c Patch
https://github.com/mojolicious/mojo/issues/1736 Exploit Issue Tracking
https://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c Patch
https://github.com/mojolicious/mojo/issues/1736 Exploit Issue Tracking
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-47208 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-47208 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-47208 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47208 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    May. 05, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:mojolicious:mojolicious:*:*:*:*:*:perl:*:* versions up to (excluding) 9.11
    Added Reference Type CVE: https://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c Types: Patch
    Added Reference Type MITRE: https://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c Types: Patch
    Added Reference Type CVE: https://github.com/mojolicious/mojo/issues/1736 Types: Exploit, Issue Tracking
    Added Reference Type MITRE: https://github.com/mojolicious/mojo/issues/1736 Types: Exploit, Issue Tracking
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Mar. 20, 2025

    Action Type Old Value New Value
    Added CWE CWE-400
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c
    Added Reference https://github.com/mojolicious/mojo/issues/1736
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 16, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by [email protected]

    Apr. 08, 2024

    Action Type Old Value New Value
    Added Description The Mojolicious module before 9.11 for Perl has a bug in format detection that can potentially be exploited for denial of service.
    Added Reference MITRE https://github.com/mojolicious/mojo/issues/1736 [No types assigned]
    Added Reference MITRE https://github.com/mojolicious/mojo/commit/a0c4576ffb11c235088550de9ba7ac4196e1953c [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 4.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact