CVE-2021-34817
Etherpad Cross-Site Scripting (XSS) Vulnerability
Description
A Cross-Site Scripting (XSS) issue in the chat component of Etherpad 1.8.13 allows remote attackers to inject arbitrary JavaScript or HTML by importing a crafted pad.
INFO
Published Date :
July 19, 2021, 2:15 p.m.
Last Modified :
July 27, 2021, 6:14 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.8
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-2021-34817.
| URL | Resource |
|---|---|
| https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities | Third Party Advisory |
| https://etherpad.org/#download | Patch Vendor Advisory |
| https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa | Exploit Patch Third Party Advisory |
| https://github.com/ether/etherpad-lite/releases/tag/1.8.14 | Patch 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-2021-34817 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-34817 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. 27, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities No Types Assigned https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities Third Party Advisory Changed Reference Type https://etherpad.org/#download No Types Assigned https://etherpad.org/#download Patch, Vendor Advisory Changed Reference Type https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa No Types Assigned https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa Exploit, Patch, Third Party Advisory Changed Reference Type https://github.com/ether/etherpad-lite/releases/tag/1.8.14 No Types Assigned https://github.com/ether/etherpad-lite/releases/tag/1.8.14 Patch, Release Notes, Third Party Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:etherpad:etherpad:1.8.13:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-34817 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-2021-34817
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.19 }} 0.01%
score
0.55413
percentile