CVE-2023-40266
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 · uneditedAn issue was discovered in Atos Unify OpenScape Xpressions WebAssistant V7 before V7R1 FR5 HF42 P911. It allows path traversal.
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 confidenceA path traversal vulnerability exists in Atos Unify OpenScape Xpressions WebAssistant V7 before version V7R1 FR5 HF42 P911. This critical flaw (CVSS 9.8) allows attackers to manipulate file paths using '..' sequences to access files and directories outside the web root, potentially exposing sensitive system files or configuration data.
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>= 7.0, < 7r1_fr5_hf42_p911CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 checksWork through these to decide whether this CVE applies to you.
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Confirm OpenScape Xpressions WebAssistant is installedLocate the WebAssistant installation directory or check system services for processes related to OpenScape Xpressions WebAssistant. On Windows, check Program Files; on Linux, check /opt or standard application directories. Look for web server processes (Apache, IIS, or proprietary) serving the WebAssistant application.Affected if The software is present on the system
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Identify the installed WebAssistant versionCheck the version information in the WebAssistant application. This is typically found in an about page, version file, or manifest within the installation directory. The version format follows the pattern like V7R1 FR5 HF42 P911.Affected if Version cannot be determined or is below 7r1_fr5_hf42_p911
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Compare version against affected rangeCompare your installed version against: >= 7.0 AND < 7r1_fr5_hf42_p911. Note that version 7.0 through versions before V7R1 FR5 HF42 P911 are all affected.Affected if Installed version is 7.0 or any version up to but not including V7R1 FR5 HF42 P911
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Verify web service is accessibleConfirm the WebAssistant web interface is accessible on the network. The path traversal vulnerability requires the web service to be reachable, typically on ports 80/443 or configured custom ports.Affected if Web interface is exposed and version is in the affected range
You are affected if OpenScape Xpressions WebAssistant version 7.0 or higher but earlier than V7R1 FR5 HF42 P911 is installed and the web service is accessible.
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 · scoped7r1_fr5_hf42_p911
Upgrade to OpenScape Xpressions WebAssistant V7R1 FR5 HF42 P911 or later. If immediate upgrade is not possible, implement strict input validation on all file path parameters and restrict web server file system permissions.
V7R1 FR5 HF42 P911
- Identify current WebAssistant version by accessing the admin interface or checking system information
- Schedule a maintenance window for the upgrade procedure
- Create a complete backup of the current WebAssistant configuration and any relevant data
- Upgrade Unify Openscape Xpressions WebAssistant to version V7R1 FR5 HF42 P911 using the official upgrade process from Unify
- After upgrade, verify the installation was successful and the WebAssistant is operational
- Confirm the version by checking the WebAssistant admin interface shows version V7R1 FR5 HF42 P911 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-40266 — 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-2023-40266 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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