CVE-2023-24435Network attack vector

Credential theft via unchecked form validation

Published Jan 24, 2023 · Updated Apr 2, 2025

Missing authorization in GitHub Pull Request Builder 1.42.2 and earlier allows remote authenticated users to capture Jenkins credentials. Form-validation methods accept an attacker-specified URL and credential ID without checking authorization, causing Jenkins to authenticate to the attacker’s HTTP server. Overall/Read permission and a credential ID obtained through another method are required; successful exploitation discloses the selected stored credential.

CVSS severity6.5
Medium
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in GitHub Pull Request Builder 1.42.2 and earlier allows remote authenticated users to capture Jenkins credentials. Form-validation methods accept an attacker-specified URL and credential ID without checking authorization, causing Jenkins to authenticate to the attacker’s HTTP server. Overall/Read permission and a credential ID obtained through another method are required; successful exploitation discloses the selected stored credential.

The record

CVE
CVE-2023-24435
Published
Jan 24, 2023
Updated
Apr 2, 2025
Vendor
Jenkins Project
Product
GitHub Pull Request Builder
Classifications
CWE-862, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 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=unspecified <=1.42.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · GitHub Pull Request Builderversion=unspecified <=1.42.2

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-862Missing Authorization
T1555Credentials from Password Stores

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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