CVE-2025-6216 Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability
Remote attackers can bypass authentication and take over accounts by exploiting predictable password reset tokens in Allegra.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-6216?
CVE-2025-6216 is a critical authentication bypass vulnerability in Allegra, published on 21 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-640
Which versions are affected by CVE-2025-6216?
It affects 1 product.
Products include Alltena Allegra.
How do I fix CVE-2025-6216?
No fix has been published for CVE-2025-6216 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-6216 being exploited?
There is no known exploitation of CVE-2025-6216 in the wild and no public exploit code.
Other vulnerabilities in Allegra
- CVE-2023-51638 Allegra Hard-coded Credentials Authentication Bypass Vulnerability
- CVE-2023-51639 Allegra downloadExportedChart Directory Traversal Authentication Bypass Vulnerability
- CVE-2023-51641 Allegra renderFieldMatch Deserialization of Unstrusted Data Remote Code Execution Vulnerability
- CVE-2023-51642 Allegra loadFieldMatch Deserialization of Untrusted Data Remote Code Execution Vulnerability
- CVE-2023-51644 Allegra SiteConfigAction Improper Access Control Remote Code Execution Vulnerability
Sources
Also known as GHSA-7jmp-283p-h6xj.