CVE-2026-93634

4.3 Moyenne

Publiée le 23/10/2026 à 16:17 · Modifiée le 23/10/2026 à 18:44 · En attente d'analyse NVD · Source : cve@rapid7.com

Description

A cross-account authorization vulnerability in Zimbra Collaboration Suite (ZCS) allows an authenticated user to insert forged shared-file records into another user's mailbox through FileSharedWithMeRequest. The request bypasses delegated-account authorization and accepts attacker-selected file metadata, owner identifiers and declared sizes without validating a corresponding document share. An attacker can plant entries attributed to another real local account without that account sharing a document. No victim interaction is required. ZCS 10.1.16 and 10.1.20 are affected.

Traduire en français

Produits concernés

Zimbra Collaboration Suite

Scores CVSS

Version	Score	Source	Vecteur
3.1	4.3 Moyenne	cve@rapid7.com	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N`

Faiblesses (CWE)

CWE-639

Références

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
https://www.rapid7.com/blog/post/ve-breaking-zimbra-identity-boundaries-part-1/

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories