CVE-2023-49656Network attack vector

Secret extraction and SSRF via unsafe XML parsing

Published Nov 29, 2023 · Updated Feb 13, 2025

XXE in Jenkins MATLAB Plugin 2.11.0 and earlier allows attackers to extract controller secrets or perform SSRF through crafted XML. Form-validation endpoints parse an XML file in a user-specified MATLAB directory without disabling external entity resolution. Attackers must first create the crafted file on the controller; successful parsing reads local data or causes controller-originated requests.

CVSS severity9.8
Critical
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in Jenkins MATLAB Plugin 2.11.0 and earlier allows attackers to extract controller secrets or perform SSRF through crafted XML. Form-validation endpoints parse an XML file in a user-specified MATLAB directory without disabling external entity resolution. Attackers must first create the crafted file on the controller; successful parsing reads local data or causes controller-originated requests.

The record

CVE
CVE-2023-49656
Published
Nov 29, 2023
Updated
Feb 13, 2025
Vendor
Jenkins Project
Product
Jenkins MATLAB Plugin
Classifications
CWE-611, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=0 <=2.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Jenkins MATLAB Pluginversion=0 <=2.11.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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