CVE-2022-21649
Convos Stored XSS
Description
Convos is an open source multi-user chat that runs in a web browser. Characters starting with "https://" in the chat window create an <a> tag. Stored XSS vulnerability using onfocus and autofocus occurs because escaping exists for "<" or ">" but escaping for double quotes does not exist. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.
INFO
Published Date :
Jan. 4, 2022, 9:15 p.m.
Last Modified :
Jan. 8, 2022, 2:46 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.7
Exploitability Score :
2.3
Public PoC/Exploit Available at Github
CVE-2022-21649 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2022-21649.
| URL | Resource |
|---|---|
| https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability | Broken Link Third Party Advisory |
| https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c | Patch Third Party Advisory |
| https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7 | Patch Third Party Advisory |
| https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/ | Exploit Patch 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).
test 反向辣鸡数据投放 CVE-2022-23305 工具 利用 教程 Exploit POC
cve-2020-
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-21649 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-21649 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]
Jan. 08, 2022
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:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability No Types Assigned https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability Broken Link, Third Party Advisory Changed Reference Type https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c No Types Assigned https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c Patch, Third Party Advisory Changed Reference Type https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7 No Types Assigned https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7 Patch, Third Party Advisory Changed Reference Type https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/ No Types Assigned https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/ Exploit, Patch, Third Party Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:convos:convos:*:*:*:*:*:*:*:* versions up to (excluding) 6.52
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-21649 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-2022-21649
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.01%
score
0.42167
percentile