Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain valid low-privilege Allegra credentials
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DeliverySend authenticated HTTP request to exportReport endpoint
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ExploitInject path traversal sequences in path parameter
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ExecutionServer reads file outside intended report directory
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PersistReceive sensitive file contents in response
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ImpactExfiltrate credentials or configuration data
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK
2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | A valid Allegra user account with at least low-privilege access is required - authentication is confirmed by both the CVE description ('Authentication is required to exploit this vulnerability') and the CVSS PR:L metric. The attacker must be able to reach the Allegra web application over the network (AV:N) and have access to the exportReport functionality. No special configuration or non-default feature flag is needed beyond possessing a user account. Exploitation is limited by the service account's OS-level file permissions - files not readable by the service account cannot be disclosed. The scope is unchanged (S:U), so privilege escalation beyond the service account context is not a direct outcome of this vulnerability alone. |
| Impact | The CVSS 3.0 vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N accurately characterizes the risk: network-reachable, low attack complexity, no user interaction, but requiring a valid low-privilege account. The high confidentiality impact (C:H) signals that successful exploitation can yield unrestricted file read access rather than partial leakage. No EPSS score was provided in the input data, so probabilistic exploitation likelihood cannot be quantified. No CISA KEV listing is present, and no public proof-of-concept has been identified, suggesting exploitation has not yet been observed at scale. The practical risk is elevated for organizations that allow broad or self-service account registration, or where Allegra is exposed to untrusted networks, because the only gate between an attacker and arbitrary file read is a valid credential. |
| Exploit ScenarioDerived | An attacker with a standard Allegra user account submits an authenticated HTTP request to the exportReport endpoint with a crafted path parameter containing traversal sequences such as '../../etc/passwd' or '../../app/config/database.properties'. The server, lacking proper path canonicalization or jail enforcement, reads and returns the contents of the targeted file in the context of the service account. No public proof-of-concept has been identified, but the technique is well-understood and trivially reproducible given the straightforward CWE-22 pattern. |
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Alert meAnalysisAIv1 – Jun 12, 2026
Directory traversal in Allegra's exportReport method exposes arbitrary server-side files to authenticated remote attackers, operating in the context of the underlying service account. The flaw affects all tracked versions per the CPE wildcard (cpe:2.3:a:allegra:allegra:*), with Alltena's 9.0.0 release notes referencing the fix. No public exploit code or CISA KEV listing has been identified at time of analysis, and no EPSS data was provided, but the CVSS 6.5 rating reflects a meaningful confidentiality risk for any internet-facing Allegra deployment where user accounts may be broadly provisioned.
RemediationAI
The primary remediation is to upgrade Allegra to version 9.0.0 or later, as indicated by the Alltena release notes at https://alltena.com/en/resources/release-notes/release-notes-for-release-9-0-0/. The fix version is inferred from the advisory reference and has not been independently verified as explicitly patching this CVE - administrators should confirm with Alltena support. If immediate upgrade is not possible, restrict access to the exportReport functionality at the network or application layer by limiting which user roles or groups can invoke report export operations. Additionally, running the Allegra service under a least-privilege OS account (rather than a broad service account) will reduce the blast radius of any traversal by limiting which files on the host are readable. Placing Allegra behind an authenticated reverse proxy with strict access controls for external users adds a compensating layer but does not eliminate the flaw for insider threat scenarios.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Allegra is a project and issue tracking platform developed by Alltena. The vulnerability resides in the exportReport method, which accepts a user-supplied path parameter and passes it to file system operations without sanitizing directory traversal sequences (e.g., '../'). This is a classic CWE-22 (Improper Limitation of a Pathname to a Restricted Directory) flaw. The CPE string cpe:2.3:a:allegra:allegra:*:*:*:*:*:*:*:* with a wildcard version component indicates all releases prior to the fix are affected. Because the read operation executes as the service account, the breadth of disclosure depends on the OS-level permissions of that account - potentially exposing configuration files, credentials, private keys, or other application data on the host.
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Network-accessible endpoint requires low-privilege authentication; path traversal yields only file read with no write or availability impact.
Primary rating from Vendor (zdi).
CVSS VectorVendor: zdi
DescriptionCVE.org
Allegra exportReport Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Allegra. Authentication is required to exploit this vulnerability.
The specific flaw exists within the exportReport 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 disclose information in the context of the service account. Was ZDI-CAN-28208.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Allegra project tracking software contains an authentication bypass in the password recovery token generation. Unauthent
Directory traversal vulnerability in Allegra's extractFileFromZip method that allows authenticated attackers to execute
Allegra unzipFile Directory Traversal Remote Code Execution Vulnerability. Rated high severity (CVSS 7.2), this vulnerab
Allegra loadFieldMatch Deserialization of Untrusted Data Remote Code Execution Vulnerability. Rated high severity (CVSS
Allegra renderFieldMatch Deserialization of Untrusted Data Remote Code Execution Vulnerability. Rated high severity (CVS
Allegra getLinkText Server-Side Template Injection Remote Code Execution Vulnerability. Rated medium severity (CVSS 6.3)
Cross-site scripting in Allegra's downloadAttachment method enables authenticated remote attackers to inject and execute
Allegra isZipEntryValide Directory Traversal Remote Code Execution Vulnerability. Rated high severity (CVSS 8.8), this v
EUVD-2026-36633
GHSA-p625-mq37-453v
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB