CVE-2024-11839
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 · uneditedDeserialization of Untrusted Data vulnerability in PlexTrac (Runbooks modules) which allows Object Injection and arbitrary file writes.This issue affects PlexTrac: from 1.61.3 before 2.8.1.
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 · moderate confidencePlexTrac's Runbooks module contains a deserialization vulnerability where untrusted data is being deserialized without proper validation. This allows an attacker to inject malicious serialized objects, potentially leading to arbitrary file writes on the affected system. The vulnerability stems from insecure handling of serialized data within the Runbooks functionality.
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>= 1.61.3, < 2.8.1CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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 checksWork through these to decide whether this CVE applies to you.
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Identify PlexTrac installation and versionCheck the installed PlexTrac version by logging into the web interface and navigating to Settings > About, or by running 'plextrac --version' from the command line if CLI access is available. Check configuration files such as package.json, docker-compose.yml, or environment variables that may contain version information.Affected if The installed version is 1.61.3 or higher but lower than 2.8.1
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Verify Runbooks module is activeLog into the PlexTrac dashboard and confirm the Runbooks module is accessible. Check for the presence of Runbooks in the navigation menu. Review the application's module configuration or license settings to confirm Runbooks is enabled.Affected if The Runbooks module is enabled and accessible to users
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Inspect serialized data handling in RunbooksExamine the PlexTrac application logs (typically found in /var/log/plextrac or within the containerized environment) for deserialization activity related to Runbooks. Look for patterns involving serialized objects or unusual data processing in the Runbooks functionality.Affected if The application processes serialized data within Runbooks without visible validation controls
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Review Runbooks configuration for deserialization settingsCheck configuration files in the PlexTrac installation directory for any settings related to serialization, object handling, or Runbooks-specific configurations. Look for settings like 'allowSerialization' or similar deserialization-related parameters.Affected if Deserialization is permitted without explicit validation controls configured
A user is affected if their PlexTrac instance version falls within 1.61.3 to 2.8.0 (inclusive) and the Runbooks module is enabled and processing serialized data.
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scoped2.8.1
Upgrade PlexTrac to version 2.8.1 or later to remediate this vulnerability. If immediate patching is not feasible, restrict network access to the Runbooks module and implement additional input validation controls as a temporary mitigation.
2.8.1 or later
- Upgrade PlexTrac to version 2.8.1 or later to address the deserialization vulnerability
- After upgrading, verify the Runbooks module is functioning correctly
- Confirm the installed version meets the minimum requirement of 2.8.1
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation8.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-11839 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-11839 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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