CVE-2020-36640Network attack vector

Server-side data access via unrestricted XML entities

Published Jan 5, 2023 · Updated Apr 10, 2025

XXE in Bonita Web Service Connector 1.3.0 and earlier allows attackers to read server-accessible data through crafted SOAP XML responses. SecureWSConnector creates XML transformer and document-builder factories without blocking external DTD, stylesheet, or schema access. Exploitation requires control over XML processed by a configured Bonita process, and accessible resources remain bounded by the Java process permissions.

CVSS severity9.8
Critical
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

XXE in Bonita Web Service Connector 1.3.0 and earlier allows attackers to read server-accessible data through crafted SOAP XML responses. SecureWSConnector creates XML transformer and document-builder factories without blocking external DTD, stylesheet, or schema access. Exploitation requires control over XML processed by a configured Bonita process, and accessible resources remain bounded by the Java process permissions.

The record

CVE
CVE-2020-36640
Published
Jan 5, 2023
Updated
Apr 10, 2025
Vendor
Bonitasoft
Product
Bonita Web Service Connector
Classifications
CWE-611
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.2
  4. Affected versionversion=1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bonitasoft · Bonita Web Service Connectorversion=1.0; version=1.1; version=1.2; version=1.3

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
4.9VulDBAV:A/AC:M/Au:S/C:P/I:P/A:P
5.5VulDBCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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