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CVE-2026-24050

MEDIUM

5.4

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.

CVE Details

CVSS v3.1 Score5.4

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionREQUIRED

Published2/6/2026

Last Modified2/23/2026

Sourcenvd

Honeypot Sightings0

Affected Products

zulip:zulip_server

Weaknesses (CWE)

CWE-79

References

https://github.com/zulip/zulip/commit/e6093d9e4788f4d82236d856c5ed7b16767886a7(security-advisories@github.com)

https://github.com/zulip/zulip/releases/tag/11.5(security-advisories@github.com)

https://github.com/zulip/zulip/security/advisories/GHSA-56qv-8823-6fq9(security-advisories@github.com)

https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-11-5(security-advisories@github.com)

IOC Correlations

No correlations recorded

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