S4E just found a high-severity finding from top 10 tcp port service scan
critical·Product Based Web Vulnerabilities·Updated Jul 14, 2025

Allegra Authentication Bypass Scanner

Detects 'Authentication Bypass' vulnerability in Allegra. This scanner enables the identification of predictable password reset token flaws allowing unauthorized access.

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsdomain, subdomain, ipv4
CostFree
3.4k
Times Used
continuous scan runs
3.4k
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2025-6216
9.8
CVSScritical
Exploitable remotely over the internet · no authentication required.

Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability. The specific flaw exists within the password recovery mechanism. The issue results from reliance upon a predictable value when generating a password reset token. An attacker can leverage this vulnerability to bypass authentication on the application. Was ZDI-CAN-27104.

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
Allegraby Allegra
8.1.3.32
Updated Aug 22, 2026View on NVD →
Detail

Allegra is utilized by organizations globally for project management and workflow optimization. It aids teams in streamlining communication and collaboration across various projects. Renowned for its comprehensive task management capabilities, Allegra is pivotal in time-bound projects. Businesses often rely on it to improve operational efficiency and project tracking. The product's user-friendly interface and powerful features make it popular among project managers. Allegra's integration abilities further enhance its utility in enterprise environments.

The detected vulnerability is an Authentication Bypass via a Predictable Password Reset Token. It emerges from the generation of predictable values for password reset tokens within Allegra's password recovery process. By exploiting this flaw, attackers can potentially bypass authentication mechanisms. This vulnerability is critical as it allows unauthorized users to access sensitive areas without valid credentials. The widespread impact could severely compromise system integrity and data confidentiality. Organizations using vulnerable Allegra versions risk unauthorized access and data breaches.

Technically, this vulnerability arises from the predictable calculation of token expiry dates within the application's password reset mechanism. The endpoint "/resetPassword.action" is exploited by attackers with crafted requests. Tokens generated are based on foreseeable criteria, allowing attackers to derive valid tokens without authentication. The vulnerability resides in the reliance on predictable values for the token lifecycle. Attackers can manipulate this flaw to retrieve valid tokens and gain unauthorized system access. Overall, the flaw undermines Allegra's core authentication processes, posing a critical security threat.

When exploited, this vulnerability allows attackers to authenticate without proper credentials, granting access to sensitive data and system control. The impact can encompass unauthorized data disclosure and potential manipulation of project data. Organizations may face data breaches, leading to loss of intellectual property and client trust. Furthermore, system disruptions and unauthorized actions within the application are possible consequences. Financial and reputational damages may result from such exploitations. Ultimately, the risk extends to compromising entire project management processes and data integrity.

REFERENCES

Solution Advice
  • Upgrade Allegra to version 8.1.4 or 7.5.2 or later to address the predictable token issue.
  • Implement additional validation checks on tokens to ensure they are not easily predictable.
  • Introduce logging and monitoring for password reset requests to detect abnormal patterns.
  • Regularly audit and update Allegra systems to incorporate security patches and fixes.
  • Educate users on the importance of strong, unique passwords to mitigate related threats.

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Allegra Authentication Bypass Scanner | S4E