CVE-2025-6216

high-risk
Published 2025-06-21

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.

Do I need to act?

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30.0% chance of exploitation in next 30 days
EPSS score — higher than 70% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Alltena

References (2)

Vendor Advisory https://alltena.com/en/resources/release-notes/release-notes-for-release-8-1-4-a...
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-25-410/
52
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 15/34 · Moderate
Exposure 5/34 · Minimal