CVE-2023-52333
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 · uneditedAllegra saveFile Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Although authentication is required to exploit this vulnerability, product implements a registration mechanism that can be used to create a user with a sufficient privilege level. The specific flaw exists within the saveFile method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-22548.
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 confidenceA directory traversal vulnerability in Allegra's saveFile method allows authenticated attackers (or users created via the registration mechanism) to manipulate user-supplied file paths and execute arbitrary code in the context of LOCAL SERVICE due to lack of proper path validation before file operations.
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< 7.5.1CVSS 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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 Allegra installation versionLocate and read the version file or check the application metadata (typically found in version info, about page, or config files within the Allegra installation directory)Affected if Installed version is lower than 7.5.1
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Determine if user self-registration is enabledInspect the application's authentication or user management settings/configuration to check whether new users can register themselves without admin interventionAffected if User registration is enabled and allows unauthenticated or any authenticated users to be created
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Verify access to saveFile functionalityReview application logs or trace requests to determine if the saveFile method is exposed and accessible to authenticated usersAffected if saveFile method is accessible to authenticated or self-registered users
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Check for path traversal protection in file upload operationsInspect the application's file handling configuration or code related to saveFile to determine if path validation (sanitization of ../ sequences) is implementedAffected if No path validation or traversal protection is found in the saveFile method
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Review file operation permissionsExamine the service account context (LOCAL SERVICE) under which Allegra runs and verify file operation permissions on directories accessible via saveFileAffected if The service runs with LOCAL SERVICE privileges and has write access to sensitive directories
The environment is affected if Allegra version is below 7.5.1 and user registration or authenticated access to the vulnerable saveFile method is possible without proper path validation.
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 · scoped7.5.1
Implement strict path validation and sanitization in the saveFile method to prevent directory traversal sequences (../), disable or restrict the user registration mechanism, and apply vendor patches when available.
7.5.1
- Upgrade Allegra to version 7.5.1 or later
- Verify the upgrade by checking the Allegra version after installation
- Test that the saveFile functionality works correctly after the upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation6.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-52333 — 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-2023-52333 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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