CO
Email
Collaboration
by Zimbra · last CVE Oct 23, 2026
On CISA KEVExploited in the wild
74
CVEs
3
On KEV
9.8
Max CVSS
22
New 30D
Severity mix
Critical 4High 20Medium 47Low 2
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-73570
In wildKEV
8.9
72%
Aug 13
Zimbra Collaboration Suite (ZCS) OS Command Injection Vulnerability
Affected: before 10.1.20
CVE-2025-66376
In wildKEV
6.1
20%
Jan 5
Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting Vulnerability
Affected: 10.0 before 10.0.18; 10.1 before 10.1.13
CVE-2024-27443
In wildKEV
6.1
25%
Aug 12
Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scripting (XSS) Vulnerability
Affected: 10.0.0 before 10.0.7; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +32 more
CVE-2023-29382
9.8
1%
Jul 6
An issue in Zimbra Collaboration ZCS v.8.8.15 and v.9.0 allows an attacker to execute arbitrary code via the sfdc_preauth.jsp component
Affected: 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2023-29381
9.8
1%
Jul 6
An issue in Zimbra Collaboration (ZCS) v.8.8.15 and v.9.0 allows a remote attacker to escalate privileges and obtain sensitive information via the password and 2FA parameters
Affected: 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2022-32294
9.8
3%
Jul 11
Zimbra Collaboration Open Source 8.8.15 does not encrypt the initial-login randomly created password (from the "zmprove ca" command)
Affected: 8.8.15
CVE-2021-35209
9.8
3%
Jul 2
An issue was discovered in ProxyServlet.java in the /proxy servlet in Zimbra Collaboration Suite 8.8 before 8.8.15 Patch 23 and 9.x before 9.0.0 Patch 16
Affected: 8.8 before 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +28 more
CVE-2024-45518
8.8
21%
Oct 22
An issue was discovered in Zimbra Collaboration (ZCS) 10.1.x before 10.1.1, 10.0.x before 10.0.9, 9.0.0 before Patch 41, and 8.8.15 before Patch 46
Affected: 10.0.0 before 10.0.9; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2023-34193
8.8
1%
Jul 6
File Upload vulnerability in Zimbra ZCS 8.8.15 allows an authenticated privileged user to execute arbitrary code and obtain sensitive information via the ClientUploader function
Affected: 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +31 more
CVE-2015-7610
8.8
1%
May 30
Cross-site request forgery (CSRF) vulnerability in the login form in Zimbra Collaboration Suite (aka ZCS) before 8.6.0 Patch 10, 8.7.x before 8.7.11 Patch 2, and 8.8.x before…
Affected: 8.6.0; 8.6.0; 8.6.0; 8.6.0; 8.6.0; 8.6.0; +3 more
CVE-2026-93639
New
8.7
0%
Oct 23
Zimbra Collaboration Suite Missing Authorization in ConfigureZimlet Enables Delegated Administrator Privilege Escalation
Affected: through 10.1.20
CVE-2026-50053
New
8.7
0%
Oct 23
Zimbra Collaboration Suite RestFilter Request Attribute Override via Unauthenticated URL Parameters
Affected: through 10.1.17
CVE-2026-10632
New
8.7
0%
Oct 23
Zimbra Collaboration Suite Classic Web Client Reflected Cross-Site Scripting via Document Editor Packages Parameter
Affected: before 10.1.17
CVE-2026-93640
New
7.8
0%
Oct 23
Zimbra Collaboration Suite Local Privilege Escalation via Unrestricted zmunbound Sudo Configuration
Affected: through 10.1.21
CVE-2026-50057
New
7.8
0%
Oct 23
Zimbra Collaboration Suite Local Privilege Escalation via Unrestricted Postfix Sudo Permissions
Affected: through 10.1.21
CVE-2026-50056
New
7.8
0%
Oct 23
Zimbra Collaboration Suite Local Privilege Escalation via zmmailboxdmgr JVM Argument Injection
Affected: through 10.1.21
CVE-2024-27442
7.8
0%
Aug 12
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0
Affected: 10.0.0 before 10.0.7; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +32 more
CVE-2023-24032
7.8
1%
Jun 15
In Zimbra Collaboration Suite through 9.0 and 8.8.15, an attacker (who has initial user access to a Zimbra server instance) can execute commands as root by passing one of JVM…
Affected: 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2022-41347
7.8
0%
Sep 26
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.x and 9.x (e.g., 8.8.15)
Affected: 8.8.15; 9.0.0
CVE-2022-37393
7.8
2%
Aug 16
Zimbra's sudo configuration permits the zimbra user to execute the zmslapd binary as root with arbitrary parameters
Affected: 8.7.6; 8.7.7; 8.7.9; 8.7.10; 8.7.11; 8.7.11; +34 more
CVE-2024-33535
7.5
1%
Aug 12
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0
Affected: 10.0.0 before 10.0.8; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +33 more
CVE-2023-41106
7.5
1%
Dec 7
An issue was discovered in Zimbra Collaboration (ZCS) before 10.0.3
Affected: before 8.8.15; 10.0.0 before 10.0.3; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2022-37041
7.5
1%
Aug 12
An issue was discovered in ProxyServlet.java in the /proxy servlet in Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0
Affected: 8.8.15; 9.0.0
CVE-2022-45912
7.2
1%
Dec 5
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0
Affected: 8.8.15; 9.0.0
CVE-2026-93631
New
7.1
0%
Oct 23
Zimbra Collaboration Suite OAuth Extension Cross-Site Request Forgery Enables Account Linking
Affected: through 10.1.20
CVE-2026-50054
7.1
0%
Oct 8
Zimbra Collaboration Suite GrantRightsRequest SOAP Handler Allows Self-Granting of Undocumented loginAs Mailbox Delegation Right
Affected: before 10.1.20
CVE-2026-115786
New
6.5
0%
Oct 23
Zimbra Collaboration Suite Shared-File Mailbox Quota Accounting Error Enables Quota Exhaustion
Affected: through 10.1.20
CVE-2026-50055
6.5
0%
Oct 8
Zimbra Collaboration Suite Sieve Notify Filter Action Bypasses Mail Forwarding Restriction via Variable Expansion
Affected: before 10.1.20
CVE-2026-10631
6.5
0%
Oct 8
Zimbra Collaboration Suite EWS Extension Authorization Bypass via Crafted Composite Folder/Item Identifier
Affected: before 10.1.20
CVE-2026-73576
6.5
0%
Aug 13
In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation vulnerability exists in the OnlyOffice integration
Affected: before 10.1.17
CVE-2026-73574
6.5
0%
Aug 13
In Zimbra Collaboration before 10.1.17, a local file inclusion (LFI) vulnerability exists in the Zimbra Classic Web Client due to improper validation of the fu request parameter
Affected: before 10.1.17
CVE-2026-73573
6.5
0%
Aug 13
In Zimbra Collaboration (ZCS) before 10.1.17, a path traversal vulnerability exists in the Zimbra Briefcase document editing functionality due to improper validation of the…
Affected: before 10.1.17
CVE-2023-26562
6.5
1%
Feb 13
In Zimbra Collaboration (ZCS) 8.8.15 and 9.0, a closed account (with 2FA and generated passwords) can send e-mail messages when configured for Imap/smtp
Affected: 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2020-35123
6.5
2%
Dec 17
In Zimbra Collaboration Suite Network Edition versions < 9.0.0 P10 and 8.8.15 P17, there exists an XXE vulnerability in the saml consumer store extension, which is vulnerable to…
Affected: after 8.8.0 before 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +22 more
CVE-2026-93638
New
6.1
0%
Oct 23
Zimbra Collaboration Suite Pre-Authentication Reflected Cross-Site Scripting via Login Page zrememberme Parameter
Affected: through 10.1.17
CVE-2026-73572
6.1
0%
Aug 13
In Zimbra Collaboration (ZCS) before 10.1.17, a stored cross-site scripting (XSS) vulnerability exists in the Zimbra Classic Web Client due to insufficient sanitization of…
Affected: before 10.1.17
CVE-2024-45515
6.1
0%
Jul 30
An issue was discovered in Zimbra Collaboration (ZCS) through 10.1
Affected: through 10.1.0
CVE-2023-50808
6.1
0%
Feb 13
Zimbra Collaboration before Kepler 9.0.0 Patch 38 GA allows DOM-based JavaScript injection in the Modern UI
Affected: before 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +32 more
CVE-2023-48432
6.1
0%
Feb 13
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15, 9.0, and 10.0
Affected: 10.0.0 before 10.0.6; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2023-45207
6.1
1%
Feb 13
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15, 9.0, and 10.0
Affected: 10.0.0 before 10.0.5; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2023-45206
6.1
0%
Feb 13
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15, 9.0, and 10.0
Affected: 10.0.0 before 10.0.5; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2023-43103
6.1
0%
Dec 7
An XSS issue was discovered in a web endpoint in Zimbra Collaboration (ZCS) before 10.0.4 via an unsanitized parameter
Affected: before 8.8.15; 10.0.0 before 10.0.4; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2023-43102
6.1
0%
Dec 7
An issue was discovered in Zimbra Collaboration (ZCS) before 10.0.4
Affected: before 8.8.15; 10.0.0 before 10.0.4; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2023-24031
6.1
0%
Jun 15
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 8.8.15
Affected: 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +17 more
CVE-2023-24030
6.1
0%
Jun 15
An open redirect vulnerability exists in the /preauth Servlet in Zimbra Collaboration Suite through 9.0 and 8.8.15
Affected: 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2022-45913
6.1
0%
Jan 6
An issue was discovered in Zimbra Collaboration (ZCS) 9.0
Affected: 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; 8.8.15; +34 more
CVE-2022-45911
6.1
0%
Jan 6
An issue was discovered in Zimbra Collaboration (ZCS) 9.0
Affected: 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +22 more
CVE-2022-41348
6.1
1%
Oct 12
An issue was discovered in Zimbra Collaboration (ZCS) 9.0
Affected: 9.0.0
CVE-2022-41351
6.1
1%
Oct 12
In Zimbra Collaboration Suite (ZCS) 8.8.15, at the URL /h/calendar, one can trigger XSS by adding JavaScript code to the view parameter and changing the value of the uncheck…
Affected: 8.8.15
CVE-2022-41350
6.1
1%
Oct 12
In Zimbra Collaboration Suite (ZCS) 8.8.15, /h/search?action=voicemail&action=listen accepts a phone parameter that is vulnerable to Reflected XSS
Affected: 8.8.15
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