CVE-2021-3866
Cross-site Scripting (XSS) - Stored in zulip/zulip
MEDIUM
5.4
CVSS Score
Published: January 20, 2022 at 10:30 AM UTC
Updated: June 17, 2026 at 04:05 AM UTC
1 product affected across 1 vendorZulip
Using zulip/zulip by zulip?
Get instant alerts when new vulnerabilities affect zulip/zulip - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.4
Exploit prediction
EPSS 0.9%
Description
Cross-site Scripting (XSS) - Stored in GitHub repository zulip/zulip more than and including 44f935695d452cc3fb16845a0c6af710438b153d and prior to 3eb2791c3e9695f7d37ffe84e0c2184fae665cb6.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_MISCVendor Advisory
Source: [email protected]
https://blog.zulip.com/2022/01/19/cve-2021-3866/x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/zulip/zulip/commit/3eb2791c3e9695f7d37ffe84e0c2184fae665cb6x_refsource_CONFIRMExploitThird Party Advisory
Source: [email protected]
https://huntr.dev/bounties/5f48dac5-e112-4b23-bbbf-cc00ba83bcf2CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- REQUIRED
- Scope
- CHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-79
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card