BearychatApplication · Jenkins

CVE-2023-24458

HIGH · 8.8 CVSS v3.1 Published 2023-01-26
Fix available
A fix is available. Upgrade to after 3.0.2 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A cross-site request forgery (CSRF) vulnerability in Jenkins BearyChat Plugin 3.0.2 and earlier allows attackers to connect to an attacker-specified URL.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The BearyChat Plugin for Jenkins versions 3.0.2 and earlier lacks proper cross-site request forgery (CSRF) protection. This allows authenticated Jenkins users to be tricked into making unintended requests that force the plugin to connect to attacker-controlled URLs, potentially enabling server-side request forgery (SSRF) attacks, data exfiltration, or internal network reconnaissance.

MitigationUpgrade the BearyChat Plugin to a version newer than 3.0.2 which includes CSRF protection (crumb validation). If immediate upgrade is not possible, restrict Jenkins administrative access and consider network segmentation to limit impact of potential SSRF attacks.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
BearychatApplication
Affected:<= 3.0.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify BearyChat plugin is installed
    Navigate to Jenkins > Manage Jenkins > Manage Plugins > Installed tab and search for 'BearyChat' or check the plugin directory $JENKINS_HOME/plugins for bearychat/ directory
    Affected if The BearyChat plugin is present in the installed plugins list
  2. Determine BearyChat plugin version
    In Jenkins > Manage Jenkins > Manage Plugins > Installed tab, locate BearyChat and note the version number displayed in the plugin information column
    Affected if The installed version is 3.0.2 or any version lower than 3.0.2
  3. Confirm BearyChat plugin is configured and active
    Navigate to Jenkins > Manage Jenkins > Configure System and look for the BearyChat configuration section, or check if any Jenkins jobs have BearyChat notification steps configured
    Affected if The plugin has an active configuration or is used in job definitions, making it reachable via user interactions
  4. Check global CSRF protection status
    Navigate to Jenkins > Manage Jenkins > Configure Global Security and verify if 'CSRF Protection' is enabled under the Security realm or header section
    Affected if CSRF protection is disabled orcrumb validation is not enforced, which would allow the CSRF attack vector to succeed

You are affected if the BearyChat plugin is installed at version 3.0.2 or earlier AND is actively configured in Jenkins, particularly if CSRF protection is not enforced globally.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to a release after 3.0.2
Interim mitigation

Upgrade the BearyChat Plugin to a version newer than 3.0.2 which includes CSRF protection (crumb validation). If immediate upgrade is not possible, restrict Jenkins administrative access and consider network segmentation to limit impact of potential SSRF attacks.

Fix this in Bearychat Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing1.0 h
  • Review / QA0.5 h
3.5 hours of engineering $750
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,200.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-24458 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-24458 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data