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CVE-2026-10632

8.7 high SSVC exploitation: none Published
NVD · CVE.org

A reflected cross-site scripting vulnerability in the Classic Web Client of Zimbra Collaboration Suite (ZCS) allows an attacker to inject JavaScript through the packages parameter of the /h/rest document editor. The editor inserts package names into script attributes without HTML encoding. When combined with CVE-2026-50053, an attacker with an ordinary Zimbra account can supply their own authentication token and document identifiers in a URL and execute JavaScript in another signed-in user's Zimbra browser session when that user opens the URL. This permits reading mailbox data and performing authenticated actions as the victim. The issue affects ZCS 10.1.16 and was remediated in 10.1.17.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 7

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 20:02
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 20:17
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-23 13:37
  4. StatusPublished → Awaiting AnalysisNVD modified 2026-10-23 16:44
  5. StatusReceived → PublishedNVD modified 2026-10-23 13:37
  6. StatusPublished → ReceivedNVD modified 2026-10-23 14:17
  7. First seenCVSS 8.7 · zimbraNVD modified 2026-10-23 13:37

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 2