8.8
HIGH
CVE-2021-3742
Chatwoot SSRF Avatar PNG
Description

A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.

INFO

Published Date :

Nov. 15, 2024, 11:15 a.m.

Last Modified :

Nov. 19, 2024, 5:10 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-3742 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 Chatwoot chatwoot
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-2021-3742.

URL Resource
https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c Product
https://huntr.com/bounties/1625472546121-chatwoot/chatwoot Broken Link

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-2021-3742 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3742 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]

    Nov. 19, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c No Types Assigned https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c Product
    Changed Reference Type https://huntr.com/bounties/1625472546121-chatwoot/chatwoot No Types Assigned https://huntr.com/bounties/1625472546121-chatwoot/chatwoot Broken Link
    Added CPE Configuration OR *cpe:2.3:a:chatwoot:chatwoot:*:*:*:*:*:*:*:* versions up to (excluding) 2.5.0
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 18, 2024

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

    Nov. 15, 2024

    Action Type Old Value New Value
    Added Description A Server-Side Request Forgery (SSRF) vulnerability was discovered in chatwoot/chatwoot, affecting all versions prior to 2.5.0. The vulnerability allows an attacker to upload an SVG file containing a malicious SSRF payload. When the SVG file is used as an avatar and opened in a new tab, it can trigger the SSRF, potentially leading to host redirection.
    Added Reference huntr.dev https://huntr.com/bounties/1625472546121-chatwoot/chatwoot [No types assigned]
    Added Reference huntr.dev https://github.com/chatwoot/chatwoot/commit/6fdd4a29969be8423f31890b807d27d13627c50c [No types assigned]
    Added CWE huntr.dev CWE-918
    Added CVSS V3 huntr.dev AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3742 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-2021-3742 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability