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CriticalPublic exploit

Broken Access Control in Termix File Manager sessionId handling

IdentifiersCVE-2026-45746CWE-639· Authorization Bypass Through…

CVE-2026-45746 affects Termix, a web-based server management platform that provides SSH terminal, tunneling, and file editing capabilities. Prior to version 2.3.2, the File Manager backend improperly validates the client-supplied sessionId parameter and trusts that identifier without verifying that it is owned by the authenticated user. This is a broken access control / IDOR-style flaw that allows an attacker to substitute another user's active File Manager session identifier and gain access to that user's File Manager context. Because File Manager sessions are bound to SSH connections to remote VPS instances, successful exploitation permits unauthorized interaction with the victim user's remote filesystem. The exposed functionality includes reading, writing, uploading, and executing files, which can be leveraged to achieve remote code execution on the victim-managed VPS.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

An attacker can hijack another user's active File Manager session and perform unauthorized actions against the remote VPS associated with that session. Impact includes unauthorized file read and modification, file upload, arbitrary file execution, compromise of data confidentiality and integrity on the remote system, and effective remote code execution on the victim's VPS through the File Manager's execution capabilities. Depending on the privileges of the SSH session used by the victim, this may result in full compromise of the affected remote host.

Mitigation

If you can’t patch tonight, do this now.

If immediate upgrade is not possible, restrict access to the Termix instance to trusted administrators only, terminate or rotate active File Manager sessions, and monitor for anomalous access to File Manager endpoints involving unexpected sessionId values. Reduce exposure of the management interface to the public Internet, enforce strong authentication, and review SSH session privileges used by Termix so that any compromised File Manager session has minimal permissions on downstream VPS hosts.

Remediation

Patch, then assume compromise.

Upgrade Termix to version 2.3.2 or later, which patches the improper validation of the sessionId parameter. The backend should enforce server-side authorization checks that bind every File Manager session identifier to the authenticated user and reject access when ownership does not match. Session identifiers should not be treated as sufficient proof of authorization on their own.
PUBLIC EXPLOITS

Exploits

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VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
TermixTermixapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

7 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

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Detection signatures

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Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity7

Community discussion across Reddit, Mastodon, and other social sources.