CVE-2021-43791

Katalog CVE

CVSS 5.3 · Medium EPSS 0,66%

Kerentanan Insufficient Session Expiration pada zulip. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

Zulip is an open source group chat application that combines real-time chat with threaded conversations. In affected versions expiration dates on the confirmation objects associated with email invitations were not enforced properly in the new account registration flow. A confirmation link takes a user to the check_prereg_key_and_redirect endpoint, before getting redirected to POST to /accounts/register/. The problem was that validation was happening in the check_prereg_key_and_redirect part and not in /accounts/register/ - meaning that one could submit an expired confirmation key and be able to register. The issue is fixed in Zulip 4.8. There are no known workarounds and users are advised to upgrade as soon as possible.

Rincian

Terbit di NVD

2 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-613: Insufficient Session Expiration

EPSS (30 hari)

0,66% peluang dieksploitasi; lebih tinggi dari 50,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/zulip/zulip/commit/a014ef75a3a0ed7f24ebb157632ba58751e732c6 patch · advisory pihak ketiga
• https://github.com/zulip/zulip/security/advisories/GHSA-wj76-pcqr-mf9f advisory pihak ketiga