VendorsSynacorzimbra_collaboration_suiteany version
Vulnerabilities

Synacor Zimbra Collaboration Suite any version

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

78CVEs
CVE-2024-45519
The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0 Patch 41, 10 before 10.0.9, and 10.1 before 10.1.1 sometimes allows unauthenticated users to execute commands.
Published 2024-10-02 · Analyzed
10.0KEVEPSS 0.999
CVE-2019-9670
mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an XML External Entity injection (XXE) vulnerability, as demonstrated by Autodiscover/Autodiscover.xml.
Published 2019-05-29 · Analyzed
9.8KEV1 PoCEPSS 1.000
CVE-2020-7796
Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.
Published 2020-02-18 · Analyzed
9.8KEVEPSS 0.844
CVE-2019-6980
Synacor Zimbra Collaboration Suite 8.7.x through 8.8.11 allows insecure object deserialization in the IMAP component.
Published 2019-05-29 · Modified
9.8EPSS 0.038
CVE-2017-6821
Directory traversal vulnerability in Zimbra Collaboration Suite (aka ZCS) before 8.7.6 allows attackers to have unspecified impact via unknown vectors.
Published 2017-05-23 · Modified
9.8EPSS 0.038
CVE-2016-9924
Zimbra Collaboration Suite (ZCS) before 8.7.4 allows remote attackers to conduct XML External Entity (XXE) attacks.
Published 2017-03-29 · Modified
9.8EPSS 0.029
CVE-2017-6813
A service provided by Zimbra Collaboration Suite (ZCS) before 8.7.6 fails to require needed privileges before performing a few requested operations.
Published 2017-05-23 · Modified
9.8EPSS 0.026
CVE-2018-20160
ZxChat (aka ZeXtras Chat), as used for zimbra-chat and zimbra-talk in Synacor Zimbra Collaboration Suite 8.7 and 8.8 and in other products, allows XXE attacks, as demonstrated by a crafted XML request to mailboxd.
Published 2019-05-29 · Modified
9.8EPSS 0.022
CVE-2016-3415
Zimbra Collaboration before 8.7.0 allows remote attackers to conduct deserialization attacks via unspecified vectors, aka bug 102276.
Published 2017-01-18 · Modified
9.1EPSS 0.025
CVE-2026-73570
A remote code execution vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.20 when the optional zimbra-snmp package is installed and SNMP notifications are enabled. Due to improper sanitization of untrusted input during SNMP notification processing, an unauthenticated attacker can send specially crafted SMTP requests that may result in execution of arbitrary operating system commands as the Zimbra user.
Published 2026-08-13 · Analyzed
8.9KEVEPSS 0.117
CVE-2025-68645
A Local File Inclusion (LFI) vulnerability exists in the Webmail Classic UI of Zimbra Collaboration (ZCS) 10.0 and 10.1 because of improper handling of user-supplied request parameters in the RestFilter servlet. An unauthenticated remote attacker can craft requests to the /h/rest endpoint to influence internal request dispatching, allowing inclusion of arbitrary files from the WebRoot directory.
Published 2025-12-22 · Analyzed
8.8KEVEPSS 0.489
CVE-2025-25064
SQL injection vulnerability in the ZimbraSync Service SOAP endpoint in Zimbra Collaboration 10.0.x before 10.0.12 and 10.1.x before 10.1.4 due to insufficient sanitization of a user-supplied parameter. Authenticated attackers can exploit this vulnerability by manipulating a specific parameter in the request, allowing them to inject arbitrary SQL queries that could retrieve email metadata.
Published 2025-02-03 · Analyzed
8.8EPSS 0.367
CVE-2016-3403
Multiple cross-site request forgery (CSRF) vulnerabilities in the Admin Console in Zimbra Collaboration before 8.6.0 Patch 8 allow remote attackers to hijack the authentication of administrators for requests that (1) add, (2) modify, or (3) remove accounts by leveraging failure to use of a CSRF token and perform referer header checks, aka bugs 100885 and 100899.
Published 2017-05-17 · Modified
8.8EPSS 0.014
CVE-2015-7610
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 8.8.8 Patch 1 allows remote attackers to hijack the authentication of unspecified victims by leveraging failure to use a CSRF token.
Published 2018-05-30 · Modified
8.8EPSS 0.012
CVE-2016-3406
Multiple cross-site request forgery (CSRF) vulnerabilities in Zimbra Collaboration before 8.7.0 allow remote attackers to hijack the authentication of unspecified victims via vectors involving (1) the Client uploader extension or (2) extension REST handlers, aka bugs 104294 and 104456.
Published 2017-01-18 · Modified
8.8EPSS 0.009
CVE-2026-33373
An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. A Cross-Site Request Forgery (CSRF) vulnerability exists in Zimbra Web Client due to the issuance of authentication tokens without CSRF protection during certain account state transitions. Specifically, tokens generated after operations such as enabling two-factor authentication or changing a password may lack CSRF enforcement. While such a token is active, authenticated SOAP requests that trigger token generation or state changes can be performed without CSRF validation. An attacker could exploit this by inducing a victim to submit crafted requests, potentially allowing sensitive account actions such as disabling two-factor authentication. The issue is mitigated by ensuring CSRF protection is consistently enforced for all issued authentication tokens.
Published 2026-03-30 · Analyzed
8.8EPSS 0.003
CVE-2025-32354
In Zimbra Collaboration (ZCS) 9.0 through 10.1, a Cross-Site Request Forgery (CSRF) vulnerability exists in the GraphQL endpoint (/service/extension/graphql) of Zimbra webmail due to a lack of CSRF token validation. This allows attackers to perform unauthorized GraphQL operations, such as modifying contacts, changing account settings, and accessing sensitive user data when an authenticated user visits a malicious website.
Published 2025-04-29 · Analyzed
8.8EPSS 0.003
CVE-2020-12846
Zimbra before 8.8.15 Patch 10 and 9.x before 9.0.0 Patch 3 allows remote code execution via an avatar file. There is potential abuse of /service/upload servlet in the webmail subsystem. A user can upload executable files (exe,sh,bat,jar) in the Contact section of the mailbox as an avatar image for a contact. A user will receive a "Corrupt File" error, but the file is still uploaded and stored locally in /opt/zimbra/data/tmp/upload/, leaving it open to possible remote execution.
Published 2020-06-03 · Modified
8.0EPSS 0.026
CVE-2022-3569
Due to an issue with incorrect sudo permissions, Zimbra Collaboration Suite (ZCS) suffers from a local privilege escalation issue in versions 9.0.0 and prior, where the 'zimbra' user can effectively coerce postfix into running arbitrary commands as 'root'.
Published 2022-10-17 · Modified
7.8EPSS 0.007
CVE-2019-9621
Zimbra Collaboration Suite before 8.6 patch 13, 8.7.x before 8.7.11 patch 10, and 8.8.x before 8.8.10 patch 7 or 8.8.x before 8.8.11 patch 3 allows SSRF via the ProxyServlet component.
Published 2019-04-30 · Analyzed
7.5KEV2 PoCEPSS 0.810
CVE-2016-3402
Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to affect confidentiality via unknown vectors, aka bug 99167.
Published 2017-01-18 · Modified
7.5EPSS 0.024
CVE-2016-3404
Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to affect integrity via unknown vectors, aka bug 103959.
Published 2017-01-18 · Modified
7.5EPSS 0.021
CVE-2016-3405
Multiple unspecified vulnerabilities in Zimbra Collaboration before 8.7.0 allow remote attackers to affect integrity via unknown vectors, aka bugs 103961 and 104828.
Published 2017-01-18 · Modified
7.5EPSS 0.021
CVE-2016-3413
Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to affect integrity via unknown vectors, aka bug 103996.
Published 2017-01-18 · Modified
7.5EPSS 0.021
CVE-2016-4019
Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to affect integrity via unknown vectors, aka bug 104477.
Published 2017-01-18 · Modified
7.5EPSS 0.020
CVE-2024-54663
An issue was discovered in the Webmail Classic UI in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A Local File Inclusion (LFI) vulnerability exists in the /h/rest endpoint, allowing authenticated remote attackers to include and access sensitive files in the WebRoot directory. Exploitation requires a valid auth token and involves crafting a malicious request targeting specific file paths.
Published 2024-12-19 · Analyzed
7.5EPSS 0.006
CVE-2025-66376
Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.
Published 2026-01-05 · Analyzed
7.2KEVEPSS 0.196
CVE-2013-5119
Zimbra Collaboration Suite (ZCS) 6.0.16 and earlier allows man-in-the-middle attackers to obtain access by sniffing the network and replaying the ZM_AUTH_TOKEN token.
Published 2013-09-23 · Modified
6.8EPSS 0.014
CVE-2016-3414
Unspecified vulnerability in Zimbra Collaboration before 8.6.0 Patch 7 allows remote authenticated users to affect availability via unknown vectors, aka bug 102029.
Published 2017-01-18 · Modified
6.5EPSS 0.021
CVE-2016-3401
Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote authenticated users to affect integrity via unknown vectors, aka bug 99810.
Published 2017-01-18 · Modified
6.5EPSS 0.017
CVE-2018-10951
mailboxd in Zimbra Collaboration Suite 8.8 before 8.8.8; 8.7 before 8.7.11.Patch3; and 8.6 before 8.6.0.Patch10 allows zimbraSSLPrivateKey read access via a GetServer, GetAllServers, or GetAllActiveServers call in the Admin SOAP API.
Published 2018-05-10 · Analyzed
6.5EPSS 0.013
CVE-2019-6981
Zimbra Collaboration Suite 8.7.x through 8.8.11 allows Blind SSRF in the Feed component.
Published 2019-05-29 · Modified
6.5EPSS 0.012
CVE-2026-73573
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 packages parameter. An authenticated attacker can exploit this vulnerability by supplying a crafted path traversal sequence, potentially allowing unauthorized disclosure of sensitive files within the web application directory.
Published 2026-08-13 · Analyzed
6.5EPSS 0.005
CVE-2026-73576
In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation vulnerability exists in the OnlyOffice integration. The zimbraDocumentEditingJwtSecret is generated using an insecure random number generator, resulting in insufficient entropy. An attacker who obtains a JWT signed with the generated secret may be able to recover the JWT signing secret through offline brute-force, potentially enabling JWT forgery.
Published 2026-08-13 · Analyzed
6.5EPSS 0.003
CVE-2026-73574
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. An unauthenticated attacker can exploit this vulnerability by supplying a crafted path, potentially allowing unauthorized disclosure of protected files, such as WEB-INF/web.xml, within the web application directory. This occurs in the Forward servlet.
Published 2026-08-13 · Analyzed
6.5EPSS 0.003
CVE-2023-37580
Zimbra Collaboration (ZCS) 8 before 8.8.15 Patch 41 allows XSS in the Zimbra Classic Web Client.
Published 2023-07-31 · Analyzed
6.1KEVEPSS 0.491
CVE-2022-24682
An issue was discovered in the Calendar feature in Zimbra Collaboration Suite 8.8.x before 8.8.15 patch 30 (update 1), as exploited in the wild starting in December 2021. An attacker could place HTML containing executable JavaScript inside element attributes. This markup becomes unescaped, causing arbitrary markup to be injected into the document.
Published 2022-02-09 · Analyzed
6.1KEVEPSS 0.309
CVE-2018-6882
Cross-site scripting (XSS) vulnerability in the ZmMailMsgView.getAttachmentLinkHtml function in Zimbra Collaboration Suite (ZCS) before 8.7 Patch 1 and 8.8.x before 8.8.7 might allow remote attackers to inject arbitrary web script or HTML via a Content-Location header in an email attachment.
Published 2018-03-27 · Analyzed
6.1KEVEPSS 0.298
CVE-2018-14013
Synacor Zimbra Collaboration Suite Collaboration before 8.8.11 has XSS in the AJAX and html web clients.
Published 2019-05-29 · Modified
6.1EPSS 0.074
CVE-2016-3411
Cross-site scripting (XSS) vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka bug 103609.
Published 2017-01-18 · Modified
6.11 PoCEPSS 0.037
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