CVE-2023-28680Network attack vector

Controller secret disclosure and SSRF via external entities

Published Mar 23, 2023 · Updated Feb 25, 2025

XXE in the XML report parser in Jenkins Project Crap4J Plugin 0.9 and earlier allows attackers to extract controller secrets via Crap Reports. The parser processes configured report.xml files without disabling external entities, so crafted declarations can read controller resources or trigger server-side requests. An attacker must control a Crap Report consumed by a configured freestyle job; access is limited to data readable or network locations reachable by the controller.

CVSS severity7.1
High
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in the XML report parser in Jenkins Project Crap4J Plugin 0.9 and earlier allows attackers to extract controller secrets via Crap Reports. The parser processes configured report.xml files without disabling external entities, so crafted declarations can read controller resources or trigger server-side requests. An attacker must control a Crap Report consumed by a configured freestyle job; access is limited to data readable or network locations reachable by the controller.

The record

CVE
CVE-2023-28680
Published
Mar 23, 2023
Updated
Feb 25, 2025
Vendor
Jenkins Project
Product
Crap4J Plugin
Classifications
CWE-611, T1005
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Mar 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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 <=0.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Jenkins Project · Crap4J Pluginversion=0 <=0.9

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.1Jenkins ProjectCVSS: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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1005Data from Local System

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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