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CVE-2026-24050

Zulip affected by Stored XSS in user profile modal

Published: Feb 6, 2026Updated: Feb 23, 2026 Sources: CVE List NVDCWE-79
NVD MITRE
5.4CVSSMEDIUM
EPSS Score
0.2%
Top 86.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Zulip is an open-source team collaboration tool. From 5.0 to before 11.5, some administrative actions on the user profile were susceptible to stored XSS in group names or channel names. Exploiting these vulnerabilities required the user explicitly interacting with the problematic object. This vulnerability is fixed in 11.5.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

zulipzulip
On-premWeb App
Enterprise Software / collaboration-groupware
zulip serverzulip
On-premWeb App
Enterprise Software / collaboration-groupware
zuliposs-projectEnterprise Softwareaka zulip

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/zulip/zulip/security/advisories/GHSA-56qv-8823-6fq9
github.com
https://github.com/zulip/zulip/commit/e6093d9e4788f4d82236d856c5ed7b16767886a7
github.com
https://github.com/zulip/zulip/releases/tag/11.5
github.com
and 1 more references View all →

Timeline

Published
Feb 6, 2026
Last Updated
Feb 23, 2026

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