NVD / CVE Program· CNA zdi

CVE-2025-6216: Allegra calculateTokenExpDate Password Recovery Authentication Bypass Vulnerability

Noroxi assessment

Priority: Plan (action score 53/100)

A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
Public proof-of-concept code exists (Exploit-DB / GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 47.7% (FIRST EPSS); higher than 98.8% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

CriticalCVSS 9.8 · v3.0—Proof of concept No fix recorded

Published: Jun 20, 2025
Updated: Jun 17, 2026
EPSS: 47.7% · 98th percentile
CWE: CWE-640

Report tools

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Action score

Plan

Add it to your regular patch cycle.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 14 / 30 · 47.7%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · zdi: 9.8; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
alltena	allegra	cpe:2.3:a:alltena:allegra

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

alltena allegra7.0.0 and later · before 7.5.2.70
alltena allegra8.0.0 and later · before 8.1.24

Versions reported by the vendor

Affected version ranges reported by the assigning authority (zdi). Independent of NVD's CPE analysis and usually ahead of it.

Allegra Allegra
- 8.1.3.32affected

Same product

alltena: all records

Other highest-scoring records for the same primary product.

CVE-2023-51639Allegra downloadExportedChart Directory Traversal Authentication Bypass Vulnerability
40Plan
CVE-2023-51638Allegra Hard-coded Credentials Authentication Bypass Vulnerability
39Monitor
CVE-2025-3485Allegra extractFileFromZip Directory Traversal Remote Code Execution Vulnerability
36Monitor

Published before and after this one in the same product

← EarlierCVE-2024-5580Nov 22, 2024 · Allegra loadFieldMatch Deserialization of Untrusted Data Remote Code Execution Vulnerability
28Monitor
← EarlierCVE-2024-5581Nov 22, 2024 · Allegra unzipFile Directory Traversal Remote Code Execution Vulnerability
29Monitor
← EarlierCVE-2025-3486May 21, 2025 · Allegra isZipEntryValide Directory Traversal Remote Code Execution Vulnerability
35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Nuclei detection template ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Nuclei detection template	Nuclei template CVE-2025-6216	—

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2025-348514 days apartAllegra extractFileFromZip Directory Traversal Remote Code Execution Vulnerability
36Monitor
CVE-2025-348630 days apartAllegra isZipEntryValide Directory Traversal Remote Code Execution Vulnerability
35Monitor