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CVE-2023-25765 — Sandbox escape in...

CRITICAL

Sandbox escape in Jenkins Email Extension Plugin

Published February 15, 2023Updated February 16, 2024Source: osv

Summary

In Jenkins Email Extension Plugin 2.93 and earlier, templates defined inside a folder were not subject to Script Security protection, allowing attackers able to define email templates in folders to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

Advisory Timeline

  • First published February 15, 2023 (1335 days ago).
  • Last revised February 16, 2024 — 366 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update org.jenkins-ci.plugins:email-ext to 2.94 or later
<!-- Update pom.xml dependency version to 2.94 for org.jenkins-ci.plugins:email-ext -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: maven (1).

PackageEcosystemAffectedFixed In
org.jenkins-ci.plugins:email-ext
maven
2.11, 2.12, 2.13, 2.14 (+102 more)2.94

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-693
    Protection Mechanism FailureMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.9 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2023-25765?
Sandbox escape in Jenkins Email Extension Plugin This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.9/10).
How do I check if my project is affected by CVE-2023-25765?
CVE-2023-25765 affects org.jenkins-ci.plugins:email-ext. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-25765 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.9

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-c9c2-wcxh-3w5j

Related CVEs

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    CRITICAL

    Sandbox bypass vulnerability in Jenkins Script Security Plugin

  • CVE-2022-43403
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  • CVE-2023-24430
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  • CVE-2022-43402
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    Jenkins Pipeline: Groovy Plugin allows sandbox protection bypass and arbitrary code execution

  • CVE-2026-57280
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    Jenkins Script Security Plugin sandbox bypass vulnerability

  • CVE-2026-57296
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    Jenkins External Workspace Manager Plugin has a path traversal vulnerability

  • CVE-2026-48920
    HIGH

    Jenkins Email Extension Plugin: Attackers able to control email content may specify `file:` URLs for images to read arbitrary files from Jenkins controller filesystem

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