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CVE-2021-3866

MEDIUM
Published 2022-01-20T10:30:11
Actions:

Expert Analysis

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CVSS Score

V3.0
6.8
/10
CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:L/A:L
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.010
probability
of exploitation in the wild

There is a 1.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.760
Higher than 76.0% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
LOW
Availability
LOW

Description

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

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

zulip

zulip/zulip

Affected Versions:

44f935695d452cc3fb16845a0c6af710438b153d unspecified

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-c9g2-65fq-w8q5

Advisory Details

Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip prior to main.

CVSS Scoring

CVSS Score

5.0

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-3866
WEB https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6
WEB https://blog.zulip.com/2022/01/19/cve-2021-3866
WEB https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2

Advisory provided by GitHub Security Advisory Database. Published: January 21, 2022, Modified: January 27, 2022

References

https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2
https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6
https://blog.zulip.com/2022/01/19/cve-2021-3866/
Published: 2022-01-20T10:30:11
Last Modified: 2024-08-03T17:09:09.603Z
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