Vulnerability Database

386,309

Total vulnerabilities in the database

CVE-2021-37402 — open-xchange / open-xchange_appsuite

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

OX App Suite before 7.10.3-rev32 and 7.10.4 before 7.10.4-rev18 allows XSS via binary data that is mishandled when the legacy dataretrieval endpoint has been enabled.

  • Published: Jul 22, 2021
  • Updated: Sep 17, 2026
  • CVE: CVE-2021-37402
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Medium
  • Score: 6.1
  • AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2:

  • Severity: Medium
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:P/A:N
Software Affected versions
open-xchange / open-xchange_appsuite = 7.10.3
open-xchange / open-xchange_appsuite = 7.10.3-patch_release5547
open-xchange / open-xchange_appsuite = 7.10.3-patch_release5572
open-xchange / open-xchange_appsuite = 7.10.3-patch_release5623
open-xchange / open-xchange_appsuite = 7.10.3-patch_release5653
open-xchange / open-xchange_appsuite = 7.10.3-patch_release5677
open-xchange / open-xchange_appsuite = 7.10.3-patch_release5720
open-xchange / open-xchange_appsuite = 7.10.3-rev1
open-xchange / open-xchange_appsuite = 7.10.3-rev10
open-xchange / open-xchange_appsuite = 7.10.3-rev11
open-xchange / open-xchange_appsuite = 7.10.3-rev12
open-xchange / open-xchange_appsuite = 7.10.3-rev13
open-xchange / open-xchange_appsuite = 7.10.3-rev14
open-xchange / open-xchange_appsuite = 7.10.3-rev15
open-xchange / open-xchange_appsuite = 7.10.3-rev16
open-xchange / open-xchange_appsuite = 7.10.3-rev17
open-xchange / open-xchange_appsuite = 7.10.3-rev18
open-xchange / open-xchange_appsuite = 7.10.3-rev19
open-xchange / open-xchange_appsuite = 7.10.3-rev2
open-xchange / open-xchange_appsuite = 7.10.3-rev20
open-xchange / open-xchange_appsuite = 7.10.3-rev21
open-xchange / open-xchange_appsuite = 7.10.3-rev22
open-xchange / open-xchange_appsuite = 7.10.3-rev23
open-xchange / open-xchange_appsuite = 7.10.3-rev24
open-xchange / open-xchange_appsuite = 7.10.3-rev25
open-xchange / open-xchange_appsuite = 7.10.3-rev26
open-xchange / open-xchange_appsuite = 7.10.3-rev27
open-xchange / open-xchange_appsuite = 7.10.3-rev28
open-xchange / open-xchange_appsuite = 7.10.3-rev29
open-xchange / open-xchange_appsuite = 7.10.3-rev3
open-xchange / open-xchange_appsuite = 7.10.3-rev30
open-xchange / open-xchange_appsuite = 7.10.3-rev31
open-xchange / open-xchange_appsuite = 7.10.3-rev4
open-xchange / open-xchange_appsuite = 7.10.3-rev5
open-xchange / open-xchange_appsuite = 7.10.3-rev6
open-xchange / open-xchange_appsuite = 7.10.3-rev7
open-xchange / open-xchange_appsuite = 7.10.3-rev8
open-xchange / open-xchange_appsuite = 7.10.3-rev9
open-xchange / open-xchange_appsuite = 7.10.4
open-xchange / open-xchange_appsuite = 7.10.4-rev1
open-xchange / open-xchange_appsuite = 7.10.4-rev10
open-xchange / open-xchange_appsuite = 7.10.4-rev11
open-xchange / open-xchange_appsuite = 7.10.4-rev12
open-xchange / open-xchange_appsuite = 7.10.4-rev13
open-xchange / open-xchange_appsuite = 7.10.4-rev14
open-xchange / open-xchange_appsuite = 7.10.4-rev15
open-xchange / open-xchange_appsuite = 7.10.4-rev16
open-xchange / open-xchange_appsuite = 7.10.4-rev17
open-xchange / open-xchange_appsuite = 7.10.4-rev2
open-xchange / open-xchange_appsuite = 7.10.4-rev3
open-xchange / open-xchange_appsuite = 7.10.4-rev4
open-xchange / open-xchange_appsuite = 7.10.4-rev5
open-xchange / open-xchange_appsuite = 7.10.4-rev6
open-xchange / open-xchange_appsuite = 7.10.4-rev7
open-xchange / open-xchange_appsuite = 7.10.4-rev8
open-xchange / open-xchange_appsuite = 7.10.4-rev9

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.