Home/CVE/A improper handling of parameters in Fortinet FortiWeb versions 7.6.3 and below, versions 7.4.7 and below, versions 7.2.
CVE

CVE-2025-52970

A improper handling of parameters in Fortinet FortiWeb versions 7.6.3 and below, versions 7.4.7 and below, versions 7.2.

A improper handling of parameters in Fortinet FortiWeb versions 7.6.3 and below, versions 7.4.7 and below, versions 7.2.10 and below, and 7.0.10 and below may allow an unauthenticated remote attacker with non-public information pertaining to the device and targeted user to gain admin privileges on the device via a specially crafted request.

HIGH · CVSS 8.1 EPSS 0.22775
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-233Improper Handling of Parameters
▤

Affected Products & Versions

4
fortinet fortiweb>= 7.0.0 and < 7.0.11
fortinet fortiweb>= 7.2.0 and < 7.2.11
fortinet fortiweb>= 7.4.0 and < 7.4.8
fortinet fortiweb>= 7.6.0 and < 7.6.4
⚠

Public Exploits & PoCs

2
nucleiFortinet FortiWeb - Authentication Bypass to Admin Privilegehigh
pocpwner.gg · 2025-08-13-fortiweb-cve-2025-52970pwner.gg
◈

Detection Rules (IDS/IPS)

1
et-openET WEB_SPECIFIC_APPS Fortinet FortiWeb Out of Bounds Access via HTTP Cookie (CVE-2025-52970)web-application-attack
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · psirt@fortinet.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Aug 2025 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://fortiguard.fortinet.com/psirt/FG-IR-25-448Vendor Advisory
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