Zimbra - Cross-Site Scripting via ICS Files

Detects Zimbra Collaboration Suite versions vulnerable to CVE-2025-27915, a stored XSS vulnerability in the Classic Web Client due to insufficient sanitization of HTML content in ICS files. When a user views an email with a malicious ICS entry, embedded JavaScript executes via an ontoggle event...

Zimbra Collaboration - Cross-Site Scripting (XSS)

An issue was discovered in Zimbra Collaboration ZCS 9.0 and 10.0. A Cross-Site Scripting XSS vulnerability exists in the CalendarInvite feature of the Zimbra webmail classic user interface, because of improper input validation in the handling of the calendar header. An attacker can exploit this v...

Zimbra Collaboration (ZCS) - Cross Site Scripting

A reflected cross-site scripting XSS vulnerability in the /public/launchNewWindow.jsp component of Zimbra Collaboration aka ZCS 9.0 allows unauthenticated attackers to execute arbitrary web script or HTML via request parameters. id: CVE-2022-27926 info: name: Zimbra Collaboration ZCS - Cross Site...

Zimbra Collaboration Suite - Memcached Command Injection

Zimbra Collaboration Suite versions 8.8.15 and 9.0 contain a memcached command injection vulnerability that allows an unauthenticated attacker to inject arbitrary memcache commands into a targeted instance, leading to cache poisoning and potential credential theft. id: CVE-2022-27924 info: name:...

Zimbra Collaboration Suite - Cross-site Scripting

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. id:...

Synacor Zimbra Collaboration Suite Collaboration <8.8.11 - Cross-Site Scripting

Synacor Zimbra Collaboration Suite Collaboration before 8.8.11 is vulnerable to cross-site scripting via the AJAX and html web clients. id: CVE-2018-14013 info: name: Synacor Zimbra Collaboration Suite Collaboration 8.8.11 - Cross-Site Scripting author: pikpikcu severity: medium description:...

Zimbra Collaboration Suite < 8.8.15 - Improper Encoding

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...

Zimbra Collaboration Suite 8.8.15/9.0 - Remote Code Execution

Zimbra Collaboration Suite ZCS 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. By bypassing authentication i.e., not having an authtoken, an attacker can upload arbitrary files to the system, leading to directory traversal and remote code...

Zimbra Collaboration Suite (ZCS) v.8.8.15 - Cross-Site Scripting

Cross Site Scripting vulnerability in Zimbra ZCS v.8.8.15 allows a remote authenticated attacker to execute arbitrary code via a crafted script to the /h/autoSaveDraft function. id: CVE-2023-34192 info: name: Zimbra Collaboration Suite ZCS v.8.8.15 - Cross-Site Scripting author: ritikchaddha...

Zimbra Collaboration Suite (ZCS) v.8.8.15 - Cross-Site Scripting

Zimbra Collaboration ZCS 8 before 8.8.15 Patch 41 allows XSS in the Zimbra Classic Web Client. id: CVE-2023-37580 info: name: Zimbra Collaboration Suite ZCS v.8.8.15 - Cross-Site Scripting author: ritikchaddha severity: medium description: | Zimbra Collaboration ZCS 8 before 8.8.15 Patch 41 allow...

Zimbra Collaboration Suite - SSRF

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. id: CVE-2019-9621 info: name: Zimbra Collaboration Suite - SSRF author: riteshs4hu severity: high description: |...

Zimbra Collaboration Suite < 8.8.15 Patch 7 - Server-Side Request Forgery

Zimbra Collaboration Suite ZCS before 8.8.15 Patch 7 is susceptible to server-side request forgery when WebEx zimlet is installed and zimlet JSP is enabled. id: CVE-2020-7796 info: name: Zimbra Collaboration Suite 8.8.15 Patch 7 - Server-Side Request Forgery author: gy741 severity: critical...

Zimbra Collaboration - Unrestricted File Upload

An issue was discovered in Zimbra Collaboration ZCS 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole extraction to /opt/zimbra/jetty/webapps/zimbra/public that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also,...

Zimbra Collaboration Server 7.2.2/8.0.2 Local File Inclusion

A directory traversal vulnerability in /res/I18nMsg,AjxMsg,ZMsg,ZmMsg,AjxKeys,ZmKeys,ZdMsg,Ajx%20TemplateMsg.js.zgz in Zimbra 7.2.2 and 8.0.2 allows remote attackers to read arbitrary files via a .. dot dot in the skin parameter. This can be leveraged to execute arbitrary code by obtaining LDAP...

Zimbra Collaboration Server 10.1.x < 10.1.20 Multiple Vulnerabilities

According to its self-reported version number, Zimbra Collaboration Server is affected by multiple vulnerabilities including: - A security issue in the EWS extension related to access controls. CVE-2026-10631 - An authorization issue in mailbox delegation. CVE-2026-50054 - A mail forwarding...

Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes

A Russian state-supported espionage group spent months reading Western mailboxes through a then-unknown flaw in Zimbra's webmail client. The payload goes after the last 90 days of email, the organization's entire email directory, the password saved in the browser and the codes kept for two-factor...

Zimbra Patches Critical SNMP Command Injection and Four XSS Vulnerabilities

Zimbra has rolled out fixes to address multiple critical security issues, including a command injection flaw in the Simple Network Management Protocol SNMP monitoring component. As many as nine security vulnerabilities have been patched in Zimbra 10.1.20. Topping the list is a command injection...

Critical Zimbra Flaw Could Let Crafted Emails Run Malicious Code in User Sessions

Zimbra is urging customers to apply updates to address a critical security vulnerability impacting the Classic Web Client that could result in arbitrary code execution. The vulnerability has been described as a case of stored cross-site scripting XSS that could allow specially crafted emails to...

Zimbra Collaboration Server < 8.8.15 Patch 7 Server-Side Request Forgery Vulnerability

According to its self-reported version number, Zimbra Collaboration Server is affected by a server-side request forgery vulnerability: - Zimbra Collaboration Suite ZCS before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled. CVE-2020-7796 Note that Nessus has no...

Synacor Zimbra Collaboration <8.7.11p10 - XML External Entity Injection

Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an XML external entity injection XXE vulnerability via the mailboxd component. id: CVE-2019-9670 info: name: Synacor Zimbra Collaboration 8.7.11p10 - XML External Entity Injection author: ree4pwn severity: critical description: Synacor...