Vulnerability · Published Jul 2, 2021 · Assigned by mitre

CVE-2021-35208

Medium 5.4

In plain English

A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).

Severity (CVSS NVD)5.4Medium

Exploit odds (30 days)1.3%top 30.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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 products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories x_refsource_MISC
https://wiki.zimbra.com/wiki/Security_Center x_refsource_MISC
https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16 x_refsource_MISC
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23 x_refsource_MISC
https://blog.sonarsource.com/zimbra-webmail-compromise-via-email x_refsource_MISC