Low 1.1Published Feb 6, 2026

CVE-2026-24050Zulip affected by Stored XSS in user profile modal

Updated under an hour ago (Oct 27, 2026, 3:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for zulip

Exploited in the last 30 days

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: 1.1 LOW (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

zulip zulip zulip:zulip (from the name)	from 5.0, < 11.5	CNA record
zulip zulip_server zulip:zulip_server	from 5.0 before 11.5	NVD

References

References

https://github.com/zulip/zulip/security/advisories/GHSA-56qv-8823-6fq9	x-refsource-confirm, vendor-advisory
https://github.com/zulip/zulip/commit/e6093d9e4788f4d82236d856c5ed7b16767886a7	x-refsource-misc, patch
https://github.com/zulip/zulip/releases/tag/11.5	x-refsource-misc, release-notes
https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-11-5	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.