# Accellion vulnerabilities

Source: https://junglewise.ai/threats/vendors/accellion  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/vendors/accellion.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 9 vulnerabilities in Accellion: 0 in the last 7 days and 0 in the last 90 days, 4 of them critical and 4 exploited in the wild. The most recent, CVE-2025-53939, was published on 29 November 2025. 2 technologies have a page of their own.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 9 (4 critical, 4 exploited in the wild)

## About Accellion

File transfer and secure collaboration platform provider.

## Latest Accellion vulnerabilities

- [CVE-2025-53939: Kiteworks is a private data network (PDN). Prior to version 9.1.0, improper input validation when managing roles of a…](https://junglewise.ai/threats/cve-2025-53939-kiteworks-is-a-private-data-network-pdn-prior-to-version-9-1-0) (medium, CVSS 6.3, published 29 Nov 2025)
- [CVE-2025-53900: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, an unfavourable definition of…](https://junglewise.ai/threats/cve-2025-53900-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (medium, CVSS 6.5, published 29 Nov 2025)
- [CVE-2025-53899: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, the back-end of Kiteworks MFT…](https://junglewise.ai/threats/cve-2025-53899-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (high, CVSS 7.2, published 29 Nov 2025)
- [CVE-2025-53897: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, this vulnerability could allow…](https://junglewise.ai/threats/cve-2025-53897-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (medium, CVSS 6.8, published 29 Nov 2025)
- [CVE-2025-53896: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, a bug in Kiteworks MFT could…](https://junglewise.ai/threats/cve-2025-53896-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (high, CVSS 7.1, published 29 Nov 2025)
- [CVE-2021-27103: Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability](https://junglewise.ai/threats/cve-2021-27103-accellion-fta-server-side-request-forgery-ssrf-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021)
- [CVE-2021-27104: Accellion FTA OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2021-27104-accellion-fta-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021)
- [CVE-2021-27101: Accellion FTA SQL Injection Vulnerability](https://junglewise.ai/threats/cve-2021-27101-accellion-fta-sql-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021)
- [CVE-2021-27102: Accellion FTA OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2021-27102-accellion-fta-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 7.8, published 3 Nov 2021)

## Most severe Accellion vulnerabilities

- [CVE-2021-27103: Accellion FTA Server-Side Request Forgery (SSRF) Vulnerability](https://junglewise.ai/threats/cve-2021-27103-accellion-fta-server-side-request-forgery-ssrf-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021)
- [CVE-2021-27104: Accellion FTA OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2021-27104-accellion-fta-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021)
- [CVE-2021-27101: Accellion FTA SQL Injection Vulnerability](https://junglewise.ai/threats/cve-2021-27101-accellion-fta-sql-injection-vulnerability) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021)
- [CVE-2021-27102: Accellion FTA OS Command Injection Vulnerability](https://junglewise.ai/threats/cve-2021-27102-accellion-fta-os-command-injection-vulnerability) (critical, exploited in the wild, CVSS 7.8, published 3 Nov 2021)
- [CVE-2025-53899: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, the back-end of Kiteworks MFT…](https://junglewise.ai/threats/cve-2025-53899-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (high, CVSS 7.2, published 29 Nov 2025)
- [CVE-2025-53896: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, a bug in Kiteworks MFT could…](https://junglewise.ai/threats/cve-2025-53896-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (high, CVSS 7.1, published 29 Nov 2025)
- [CVE-2025-53897: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, this vulnerability could allow…](https://junglewise.ai/threats/cve-2025-53897-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (medium, CVSS 6.8, published 29 Nov 2025)
- [CVE-2025-53900: Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, an unfavourable definition of…](https://junglewise.ai/threats/cve-2025-53900-kiteworks-mft-orchestrates-end-to-end-file-transfer-workflows) (medium, CVSS 6.5, published 29 Nov 2025)
- [CVE-2025-53939: Kiteworks is a private data network (PDN). Prior to version 9.1.0, improper input validation when managing roles of a…](https://junglewise.ai/threats/cve-2025-53939-kiteworks-is-a-private-data-network-pdn-prior-to-version-9-1-0) (medium, CVSS 6.3, published 29 Nov 2025)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Accellion technologies

- [Accellion FTA](https://junglewise.ai/threats/technologies/fta): 4 vulnerabilities
- [Accellion Kiteworks Managed File Transfer](https://junglewise.ai/threats/technologies/kiteworks-managed-file-transfer): 4 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Accellion vulnerabilities", https://junglewise.ai/threats/vendors/accellion, 9 November 2026.