Actively exploited · Published Apr 20, 2022 · Assigned by mitre

CVE-2022-27926

Medium 6.1 Exploited

In plain English

A medium-severity cross-site scripting in Zimbra Collaboration Suite (ZCS) from Synacor. Attackers are actively exploiting it in the wild (listed by CISA on April 3, 2023). The chance it is exploited in the next 30 days is estimated at 17.6% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei. Apply updates per vendor instructions.

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)17.6%top 2.8% of all CVEs

Exploited in the wildYesCISA KEV since Apr 3, 2023

Attack tooling1Nuclei

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Apr 24, 2023.

Official description

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.

Affected products (as reported)

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

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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/P24 x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-27926 government-resource