CVE-2025-48026
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 · uneditedA vulnerability in the WebApl component of Mitel OpenScape Xpressions through V7R1 FR5 HF43 P913 could allow an unauthenticated attacker to conduct a path traversal attack due to insufficient input validation. A successful exploit could allow an attacker to read files from the underlying OS and obtain sensitive information.
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 in the WebApl component of Mitel OpenScape Xpressions (through V7R1 FR5 HF43 P913) allows unauthenticated attackers to manipulate file paths and read arbitrary files from the underlying operating system due to insufficient input validation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 OpenScape Xpressions versionAccess the system administration interface or check installed packages to determine the exact version number (e.g., V7R1 FR5 HF43). Look for version information in the About page, system info, or check installation directories for version manifests.Affected if The installed version is V7R1 FR5 or earlier, or specifically at or before HF43 P913.
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Confirm WebApl component is exposedVerify that the WebApl web interface is accessible from the network. Check if port 8443 (default WebApl port) or the WebApl endpoint is listening and reachable. Use tools like 'netstat' or 'nmap' to identify open ports pointing to WebApl.Affected if WebApl is accessible over the network without authentication restrictions.
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Inspect WebApl configuration for traversal exposureExamine the WebApl configuration files (typically in the installation directory under WebApl/conf) to see if file parameter handling allows user-supplied paths. Look for parameters that accept file names or paths in HTTP requests.Affected if WebApl accepts file path parameters without strict validation or allowlist controls.
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Check for unauthorized file access attemptsReview WebApl access logs for suspicious requests containing '../' sequences or absolute paths outside the intended web root (e.g., ../../../../etc/passwd). Check logs in the WebApl/logs directory.Affected if Logs show traversal sequences in file-related requests, indicating active exploitation or probing.
A user is affected if their Mitel OpenScape Xpressions version is at or below V7R1 FR5 HF43 P913 and the WebApl component is exposed and accessible, allowing unauthenticated path manipulation to read arbitrary files.
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.
From vendor dataApply vendor patch P913 or later to upgrade the WebApl component, and implement input validation controls on file path parameters to prevent traversal sequences.
- Consultation3.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,416.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-48026 — 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-2025-48026 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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