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ExploitedIn CISA KEV

CVE-2023-34192

Exploitation confirmed. First attested on 2025-02-25 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-07-06
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2023-07-0616:15CVE publishedNVD
  2. 2025-02-25Added to the CISA KEV catalogCISA KEV
  3. 2025-02-25Listed as exploited by GCVEGCVE
  4. 2025-02-25Exploitation first reportedCISA KEV
  5. 2025-02-2521:45SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-34192?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-34192?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Synacor zimbra collaboration suite
BranchAffectedFixed in
8.8= 8.8.15no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. CISA’s required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.due 2025-03-18

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2025-02-25
Patch Due Date
2025-03-18
Ransomware Use
Unknown
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Published
2023-07-06
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-77v2-mcx8-5hqm

Frequently asked questions

What is CVE-2023-34192?

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.

Is CVE-2023-34192 actively exploited?

Yes. CVE-2023-34192 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2025-03-18.

What is the CVSS score for CVE-2023-34192?

CVE-2023-34192 has a CVSS v3 base score of 9 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

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Sources for this record