CVE-2025-24398Network attack vector

CSRF bypass via overly broad OAuth exclusion

Published Jan 22, 2025 · Updated Jan 23, 2025

CSRF bypass in Jenkins Bitbucket Server Integration Plugin 2.1.0 through 4.1.3 allows attackers to bypass protection via crafted URLs. The OauthCrumbExclusion extension uses permissive OAuth request and path matching instead of limiting crumb exemptions to required OAuth endpoints. Exploitation requires a user to open the crafted URL, and the resulting action runs with that user's Jenkins permissions.

CVSS severity8.8
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF bypass in Jenkins Bitbucket Server Integration Plugin 2.1.0 through 4.1.3 allows attackers to bypass protection via crafted URLs. The OauthCrumbExclusion extension uses permissive OAuth request and path matching instead of limiting crumb exemptions to required OAuth endpoints. Exploitation requires a user to open the crafted URL, and the resulting action runs with that user's Jenkins permissions.

The record

CVE
CVE-2025-24398
Published
Jan 22, 2025
Updated
Jan 23, 2025
Vendor
Jenkins Project
Product
Bitbucket Server Integration
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=2.1.0 <=4.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Jenkins Project · Bitbucket Server Integrationversion=2.1.0 <=4.1.3

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001Malicious Link

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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