7.2
HIGH
CVE-2021-34816
Etherpad Argument Injection Vulnerability
Description

An Argument Injection issue in the plugin management of Etherpad 1.8.13 allows privileged users to execute arbitrary code on the server by installing plugins from an attacker-controlled source.

INFO

Published Date :

July 21, 2021, 6:15 p.m.

Last Modified :

July 30, 2021, 3:22 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

1.2
Affected Products

The following products are affected by CVE-2021-34816 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 Etherpad etherpad
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-2021-34816.

URL Resource
https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities Exploit Third Party Advisory
https://github.com/ether/etherpad-lite/releases Release Notes Third Party Advisory

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-2021-34816 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-34816 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.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jul. 30, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities No Types Assigned https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities Exploit, Third Party Advisory
    Changed Reference Type https://github.com/ether/etherpad-lite/releases No Types Assigned https://github.com/ether/etherpad-lite/releases Release Notes, Third Party Advisory
    Added CWE NIST CWE-88
    Added CPE Configuration OR *cpe:2.3:a:etherpad:etherpad:1.8.13:*:*:*:*:*:*:*
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-2021-34816 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.10 }} -0.00%

score

0.41869

percentile

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