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CVE-2020-36640

31
FAUCET Score

CVE-2020-36640 is a critical XML External Entity (XXE) vulnerability affecting Bonitasoft bonita-connector-webservice up to version 1.3.0, specifically within the TransformerConfigurationException function of SecureWSConnector.java. With a CVSS score of 9.8, this vulnerability allows unauthenticated attackers to remotely achieve high impact on confidentiality, integrity, and availability with low attack complexity. While there is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness. Organizations should upgrade to version 1.3.1 to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.3.1CPE matchmatch criteria
cpe:2.3:a:bonitasoft:webservice_connector:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.76%
Probability of exploitation in next 30 days
EPSS Percentile
51.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0076 is in the 35th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.bonitasoft.connectors:bonita-connector-webserviceFixed in: 1.3.1

Vendor Advisories (1)

mavenGHSA-wg99-5vrx-j2ggcritical

bonita-connector-webservice XML External Entity vulnerability

Jan 5, 2023

References

github.com / bonitasoft/bonita-connector-webservice/commit/a12ad691c05af19e9061d7949b6b828ce48815d5
Patch
github.com / bonitasoft/bonita-connector-webservice/pull/17
Patch
github.com / bonitasoft/bonita-connector-webservice/releases/tag/1.3.1
Release Notes
vuldb.com
Third Party Advisory
vuldb.com
Third Party Advisory