Fortinet FortiWeb up to 7.0.12/7.2.12/7.4.8/7.6.3 authentication spoofing

Summaryinfo

A vulnerability was found in Fortinet FortiWeb up to 7.0.12/7.2.12/7.4.8/7.6.3. It has been classified as critical. This affects an unknown function. Performing a manipulation results in authentication spoofing. This vulnerability is identified as CVE-2025-48840. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Fortinet FortiWeb up to 7.0.12/7.2.12/7.4.8/7.6.3. It has been classified as critical. This affects an unknown code block. The manipulation with an unknown input leads to a authentication spoofing vulnerability. CWE is classifying the issue as CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An authentication bypass by spoofing vulnerability in Fortinet FortiWeb 7.6.0 through 7.6.3, FortiWeb 7.4.0 through 7.4.8, FortiWeb 7.2 all versions, FortiWeb 7.0 all versions may allow a remote unauthenticated attacker to bypass hostname restrictions via a specially crafted request.

The advisory is shared at fortiguard.fortinet.com. This vulnerability is uniquely identified as CVE-2025-48840 since 05/27/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Firewall Software

Vendor

• Fortinet

Name

• FortiWeb

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9
• 7.0.10
• 7.0.11
• 7.0.12
• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.5
• 7.2.6
• 7.2.7
• 7.2.8
• 7.2.9
• 7.2.10
• 7.2.11
• 7.2.12
• 7.4.0
• 7.4.1
• 7.4.2
• 7.4.3
• 7.4.4
• 7.4.5
• 7.4.6
• 7.4.7
• 7.4.8
• 7.6.0
• 7.6.1
• 7.6.2
• 7.6.3

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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