XSS in Synacor Zimbra_collaboration_suite
CVE-2022-27926
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.176 (96.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Synacor Zimbra_collaboration_suite — versions 9.0.0
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2022-27926?
- CVE-2022-27926 is a medium-severity vulnerability in Synacor Zimbra_collaboration_suite, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-04-21.
- How severe is CVE-2022-27926?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2022-27926 known to be exploited?
- Yes. CVE-2022-27926 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-04-03), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.