CVE-2021-3866

CVSS V2 Low 3.5 CVSS V3 Medium 5.4

Description

Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip more than and including 44f935695d452cc3fb16845a0c6af710438b153d and prior to 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6.

Overview

CVE ID
CVE-2021-3866

Assigner
security@huntr.dev

Vulnerability Status
Analyzed

Published Version
2022-01-20T11:15:07

Last Modified Date
2022-02-03T14:20:48

Weakness Enumerations

CWE	URL
CWE-79	http://cwe.mitre.org/data/definitions/79.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:zulip:zulip::::::::	1	OR		4.8

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:S/C:N/I:P/A:N

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
SINGLE

Confidentiality Impact
NONE

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
3.5

Severity
LOW

Exploitability Score
6.8

Impact Score
2.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
REQUIRED

Scope
CHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
5.4

Base Severity
MEDIUM

Exploitability Score
2.3

Impact Score
2.7

References

Reference URL	Reference Tags
https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2	Exploit Third Party Advisory
https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6	Patch Third Party Advisory
https://blog.zulip.com/2022/01/19/cve-2021-3866/	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-3866
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3866

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:34:35				Added to TrackCVE
2022-12-06 07:17:09	2022-01-20T11:15Z	2022-01-20T11:15:07	CVE Published Date	updated
2022-12-06 07:17:09		2022-02-03T14:20:48	CVE Modified Date	updated
2022-12-06 07:17:09		Analyzed	Vulnerability Status	updated