CVE-2026-24050

1.1 lowEPSS 0.3%

Low (1.1) in zulip zulip server. EPSS 0.3% chance of exploitation in the next 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.

Severity

CVSS 4.0

1.1 low

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

CVSS 3.1

5.4 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-02-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

zulip:zulip_server

References

https://github.com/zulip/zulip/commit/e6093d9e4788f4d82236d856c5ed7b16767886a7
https://github.com/zulip/zulip/releases/tag/11.5
https://github.com/zulip/zulip/security/advisories/GHSA-56qv-8823-6fq9
https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-11-5

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