dbcve.org
AllegraApplication · Alltena

CVE-2024-30372

MEDIUM · 6.3 CVSS v3.1 Published 2024-11-22
Fix available
A fix is available. Upgrade to 7.5.1 or later.
See remediation →
69/100
Remediation priority · Elevated
Remotely reachable Zero-click

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 · unedited
Allegra getLinkText Server-Side Template Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Authentication is required to exploit this vulnerability. The specific flaw exists within the implementation of getLinkText method. The issue results from the lack of proper validation of a user-supplied string before processing it with the template engine. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-23609.

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 confidence

Server-Side Template Injection (SSTI) vulnerability in Allegra's getLinkText method allows authenticated remote attackers to inject malicious template syntax via unsanitized user input, which the template engine processes, leading to arbitrary code execution as LOCAL SERVICE context.

MitigationApply vendor security patch when available; implement strict input validation on getLinkText to sanitize or reject template syntax characters before template engine processing; enforce least-privilege authentication for users accessing affected endpoints.

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
AllegraApplication
Affected:< 7.5.1

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Allegra installation and version
    Locate the Allegra application and check its version number, typically found in the application header, about page, or installation directory metadata
    Affected if Installed version is any release prior to 7.5.1
  2. Verify getLinkText method exposure
    Identify if the getLinkText endpoint/method is accessible within the application, typically through API documentation, web route enumeration, or source code analysis of the Allegra installation
    Affected if The getLinkText method is exposed and reachable without additional access controls beyond authentication
  3. Confirm authentication is required for the affected endpoint
    Test the getLinkText endpoint without credentials to determine if authentication is enforced; check application configuration for authentication settings
    Affected if The endpoint accepts requests from authenticated users but performs no input sanitization on user-supplied parameters passed to getLinkText
  4. Review input validation on template-related parameters
    Examine application logs, WAF rules, or custom code that processes input to getLinkText; test with template syntax characters like {{, <%, ${} to see if they are sanitized or blocked
    Affected if User input reaching getLinkText is not sanitized for template syntax characters before being processed by the template engine

You are affected if Allegra version is below 7.5.1 AND the getLinkText method is accessible to authenticated users without input sanitization on the parameters they provide.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 7.5.1 or later
Fixed in 7.5.1
Interim mitigation

Apply vendor security patch when available; implement strict input validation on getLinkText to sanitize or reject template syntax characters before template engine processing; enforce least-privilege authentication for users accessing affected endpoints.

Recommended fix High confidence

Allegra 7.5.1 or later

  1. 1. Back up the current Allegra installation and database before proceeding with the upgrade
  2. 2. Download Allegra version 7.5.1 or later from the official vendor (alltena.com)
  3. 3. Follow the vendor's official upgrade documentation for your current version
  4. 4. Apply the upgrade following standard installation procedures
  5. 5. Verify the getLinkText method now properly validates user-supplied input before template processing
  6. 6. Confirm the application starts successfully and all functionality operates normally
Caveat Review vendor release notes for 7.5.1 to check for any breaking changes or deprecated features relevant to your deployment

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Allegra Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing5.0 h
  • Review / QA3.0 h
17.0 hours of engineering $2,970
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,752.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-30372 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-30372 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data