Jenkins Microsoft Entra ID Plugin up to 666.v6060de32f87d Redirect URL redirect

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Jenkins Microsoft Entra ID Plugin up to 666.v6060de32f87d. The affected element is an unknown function of the component Redirect URL Handler. Such manipulation leads to redirect. This vulnerability is documented as CVE-2026-42525. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Jenkins Microsoft Entra ID Plugin up to 666.v6060de32f87d. Affected by this issue is an unknown part of the component Redirect URL Handler. The manipulation with an unknown input leads to a redirect vulnerability. Using CWE to declare the problem leads to CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. Impacted is integrity. CVE summarizes:

Jenkins Microsoft Entra ID (previously Azure AD) Plugin 666.v6060de32f87d and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.

The advisory is available at jenkins.io. This vulnerability is handled as CVE-2026-42525 since 04/28/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/01/2026). This vulnerability is assigned to T1204.001 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-26227) and CERT Bund (WID-SEC-2026-1320). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Jenkins Jenkins

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/28/2026 CVE reserved
04/29/2026 +1 days Advisory disclosed
04/29/2026 +0 days VulDB entry created
05/01/2026 +2 days VulDB entry last update

Sourcesinfo

Vendor: jenkins.io

Advisory: jenkins.io
Status: Not defined

CVE: CVE-2026-42525 (🔒)
GCVE (CVE): GCVE-0-2026-42525
GCVE (VulDB): GCVE-100-360146
EUVD: 🔒
CERT Bund: WID-SEC-2026-1320 - Jenkins Plugins: Mehrere Schwachstellen

Entryinfo

Created: 04/29/2026 16:09
Updated: 05/01/2026 19:10
Changes: 04/29/2026 16:09 (54), 04/29/2026 17:54 (1), 05/01/2026 19:10 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

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