Session token disclosure in M-Files Server (M-Files Web)
CVE-2025-13008 is an information disclosure issue in M-Files Server (via the M-Files Web interface) affecting versions prior to 25.12.15491.7, 25.8 LTS SR3, 25.2 LTS SR3, and 24.8 LTS SR5. An authenticated attacker using M-Files Web can capture session tokens belonging to other active users, enabling reuse of those tokens to impersonate victims and access resources under the victims’ authorization context.
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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.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Recent activity
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A security vulnerability in M-Files Server. Specific details not provided in the content.
A high-severity information disclosure vulnerability in M-Files Server (CVE-2025-13008) allows authenticated attackers to intercept and reuse session tokens of other users, potentially granting unauthorized access to sensitive documents and enabling impersonation of legitimate users.
An information disclosure vulnerability in M-Files Server that allows authenticated attackers using M-Files Web to capture session tokens of other active users, potentially leading to session hijacking. Rated high severity (CVSS 8.6).
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.