CVE-2020-7796 (GCVE-0-2020-7796)

Vulnerability from cvelistv5 – Published: 2020-02-18 21:14 – Updated: 2026-02-18 04:56
VLAI? CISA KEV
Summary
Zimbra Collaboration Suite (ZCS) before 8.8.15 Patch 7 allows SSRF when WebEx zimlet is installed and zimlet JSP is enabled.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 3149d83f-5286-4119-826e-a9c509a8c291

Vulnerability ID: CVE-2020-7796

Status: Confirmed

Status Updated: 2026-02-17 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-02-17
Asserted: 2026-02-17
Scope
Notes: KEV entry: Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability | Affected: Synacor / Zimbra Collaboration Suite | Description: Synacor Zimbra Collaboration Suite (ZCS) contains a server-side request forgery vulnerability if WebEx zimlet installed and zimlet JSP is enabled. | 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 date: 2026-03-10 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P7 ; https://nvd.nist.gov/vuln/detail/CVE-2020-7796
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-918
Feed CISA Known Exploited Vulnerabilities Catalog
Product Zimbra Collaboration Suite
Due Date 2026-03-10
Date Added 2026-02-17
Vendorproject Synacor
Vulnerabilityname Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-18 06:44 UTC | Updated: 2026-02-18 06:44 UTC
Show details on NVD website
To clipboard 

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      "cveMetadata": "{\"cveId\": \"CVE-2020-7796\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-17T23:20:23.682Z\", \"dateReserved\": \"2020-01-22T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2020-02-18T21:14:22.000Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.