{"cve":"CVE-2025-47930","nvd":{"published":"2025-05-16T00:15:18.840","modified":"2026-06-17T09:28:51.130","status":"Analyzed","description":"Zulip is an open-source team chat application. Starting in version 10.0 and prior to version 10.3, the \"Who can create public channels\" access control mechanism can be circumvented by creating a private or web-public channel, and then changing the channel privacy to public. A similar technique works for creating private channels without permission, though such a process requires either the API or modifying the HTML, as we do mark the \"private\" radio button as disabled in such cases. Version 10.3 contains a patch.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-863"],"references":["https://github.com/zulip/zulip/commit/d2ff4bda4c3efa30fc3ab1f151255cfdbf370f78","https://github.com/zulip/zulip/security/advisories/GHSA-rqg7-xfqg-v7q5","https://zulip.com/help/configure-who-can-create-channels","https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-10-3"],"products":["zulip:zulip"],"source":"nvd","synced_at":"2026-10-19T22:01:57.636215869+00:00"},"epss":{"cve":"CVE-2025-47930","score":0.00354,"percentile":0.29163,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}