CVE-2022-29890
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 · uneditedIn affected versions of Octopus Server the help sidebar can be customized to include a Cross-Site Scripting payload in the support link.
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 confidenceOctopus Server's help sidebar customization feature does not properly sanitize the support link field, allowing stored XSS. An attacker with administrative access can inject malicious JavaScript that executes when other users view the help sidebar.
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>= 2019.7.0, < 2021.3.13021>= 2022.1.2121, < 2022.1.2849>= 2022.3.348, < 2022.3.2387= 2022.2.6729CVSS 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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 installed Octopus Server versionNavigate to the Octopus Web UI, click your username in the top-right corner, and select 'About' to view the server version. Alternatively, check the installation directory or use PowerShell: Get-ItemProperty -Path 'HKLM:\SOFTWARE\Octopus' | Select-Object DisplayVersionAffected if The installed version falls within any of these ranges: >= 2019.7.0 and < 2021.3.13021; >= 2021.3.2121 and < 2022.1.2849; >= 2022.3.348 and < 2022.3.2387; or equals exactly 2022.2.6729
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Determine if help sidebar customization is accessibleLog in as an administrator and navigate to Configuration > General > Help menu customization, or access the help sidebar settings panel. Check whether the 'Support link' or similar URL field is present and editable.Affected if The help sidebar customization feature is enabled and the user has administrative access to modify the support link field
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Inspect the current support link configurationAs an administrator, view the current value in the Support link field within the help sidebar customization settings. Look for unusual URL patterns, encoded characters, or javascript: prefixes that may indicate injected code.Affected if The Support link field contains unexpected values such as javascript: scripts, HTML tags, or URLs that do not point to a legitimate support resource
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Review help sidebar usage in logsCheck Octopus Server logs (located in the_logs folder) for entries involving the help sidebar or help menu endpoints. Look for unusual or repeated requests that may indicate exploitation attempts.Affected if Logs show unexpected script content in help sidebar requests or unusual patterns of access to the customization endpoints
A user is affected if their Octopus Server version is within the affected ranges AND the help sidebar customization feature is accessible to administrators with the ability to modify the support link field.
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 · scoped2021.3.130212022.1.28492022.3.2387
Apply the vendor-provided security patch for this vulnerability. Until patched, restrict administrative access to the help sidebar customization and monitor for suspicious links.
2022.3.2387 or later (or 2021.3.13021 for 2019.7.0-2021.2.x users, 2022.1.2849 for 2022.1.x users)
- Backup your Octopus Server database and configuration
- Check current version in Octopus: go to Configuration > About
- Plan upgrade during a maintenance window with downtime
- Download the appropriate installer for version 2022.3.2387 or later from octopus.com/downloads
- Stop the Octopus Server service
- Run the installer and follow the upgrade wizard
- After installation, verify the service starts successfully
- Log in to Octopus and navigate to Configuration > About to confirm version 2022.3.2387 or later is installed
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-29890 — 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-2022-29890 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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- 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
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