01 Record
CVE-2023-37580
Zimbra Collaboration (ZCS) 8 before 8.8.15 Patch 41 allows XSS in the Zimbra Classic Web Client.
MediumKEVPUBLISHEDCNA: mitre
CNA base score6.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
02 Description
Zimbra Collaboration (ZCS) 8 before 8.8.15 Patch 41 allows XSS in the Zimbra Classic Web Client.
03 Exploitation and scoring
- Exploitation
- Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2023-07-27. Federal remediation due 2023-08-17.
- SSVC decision
- ExploitationactiveCISA reports credible evidence of active exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 49.08% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 98.8% of scored records. A rank, not a probability.
- NVD base score
- 6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-07-31 00:00Z3 YR AGO
- Last updated
- 2025-10-30 18:26Z12 MO AGO
- Reserved
- 2023-07-07
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
- Data version
- 5.2
- Document digest
- c07428637171bd2d8a5f392579c015a27b6b4a1b0f4e7e89ff470f01e33ef2a8
05 Affected products
VendorProductVersionsPlatforms
06 References
- wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Security_Center
- wiki.zimbra.comhttps://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
- www.openwall.com[oss-security] 20231117 CVE-2023-37580 (and others): XSS vulnerabilities in Zimbra Collaboration Suitehttp://www.openwall.com/lists/oss-security/2023/11/17/2
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-37580