vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2021-35208

MEDIUM
5.4
CVSS Score
Published: July 2, 2021 at 06:54 PM UTC
Updated: June 17, 2026 at 03:57 AM UTC
1 product affected across 1 vendorCollaboration

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM5.4
Exploit prediction
EPSS 1%

Description

An issue was discovered in ZmMailMsgView.js in the Calendar Invite component in Zimbra Collaboration Suite 8.8.x before 8.8.15 Patch 23. An attacker could place HTML containing executable JavaScript inside element attributes. This markup becomes unescaped, causing arbitrary markup to be injected into the document.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (5)

x_refsource_MISCExploitMitigationThird Party Advisory
Source: [email protected]
https://blog.sonarsource.com/zimbra-webmail-compromise-via-email
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://wiki.zimbra.com/wiki/Security_Center
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16
x_refsource_MISCVendor Advisory
Source: [email protected]
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories

CVSS

5.4MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card