CVE-2025-41077: Viafirma Inbox · Insecure Direct Object Reference
Affects Viafirma InboxSource CVE Database V5
Not known to be exploited · CVSS 8.6 High.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| ViafirmaInbox | Affected
| Fixed in– |
AI-suggested
Organizations should immediately verify if they are running Viafirma Inbox version 4.5.13 and prioritize upgrading to a patched version once available. In the absence of an official patch, implement strict access controls to limit authenticated user capabilities and monitor for unusual user enumeration or modification activities. Disable or restrict the password recovery functionality temporarily to prevent exploitation via email address changes. Employ application-layer firewalls or WAFs to detect and block suspicious requests targeting user enumeration or modification endpoints. Conduct thorough audits of user account changes and password reset logs to identify potential abuse. Additionally, enforce multi-factor authentication (MFA) for all users, especially administrators, to mitigate the risk of account takeover. Engage with Viafirma support for guidance and monitor security advisories for updates. Finally, educate users about phishing and social engineering risks that could compound this vulnerability.
Description
IDOR vulnerability has been found in Viafirma Inbox v4.5.13 that allows any authenticated user without privileges in the application to list all users, access and modify their data. This allows the user's email addresses to be modified and, subsequently, using the password recovery functionality to access the application by impersonating any user, including those with administrative permissions.