VulnerabilityAnalyzed

CVE-2025-6216

Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability.

CRITICAL 9.8EPSS 38.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 38.5%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

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.

CVSS 3.0: 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 38.53% probability · 98th percentile
CISA KEV: Not listed
Weakness: CWE-640
Affected: alltena/allegra
Source: zdi-disclosures@trendmicro.com

References

https://alltena.com/en/resources/release-notes/release-notes-for-release-8-1-4-and-release-7-5-2Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-25-410/Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.