# CVE-2018-13382: Fortinet FortiOS and FortiProxy Improper Authorization

Source: https://junglewise.ai/threats/cve-2018-13382-fortinet-fortios-and-fortiproxy-improper-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-01-10. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2018-13382 · Severity: critical · CVSS 9.1 · Exploited in the wild · Published 2022-01-10

An improper authorization vulnerability in the SSL VPN web portal of Fortinet FortiOS and FortiProxy allows an unauthenticated remote attacker to modify the password of a portal user. This is achieved by sending specially crafted HTTP requests to the affected system.

Technologies: [Fortinet FortiOS](https://junglewise.ai/threats/technologies/fortios), [Fortinet FortiProxy](https://junglewise.ai/threats/technologies/fortiproxy). Vendors: [Fortinet](https://junglewise.ai/threats/vendors/fortinet).

## Quick answers

**Is CVE-2018-13382 exploited in the wild?** Yes. CVE-2018-13382 is known to be exploited in the wild, first recorded on 10 January 2022. Treat it as urgent.

**How severe is CVE-2018-13382?** Critical severity, with a CVSS score of 9.1, published 10 January 2022.

**Which products and versions are affected?** Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8, 5.4.1 to 5.4.10; Fortinet FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7.

**Is there a fix for CVE-2018-13382?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2018-13382 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2018-13382?** Check whether you run Fortinet FortiOS or Fortinet FortiProxy. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8, 5.4.1 to 5.4.10
- Fortinet FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7

## Timeline

- 2022-01-10: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2022-01-10: disclosed

## Related threats

- [Fortinet FortiOS authentication bypass in HA command execution](https://junglewise.ai/threats/cve-2026-126259-a-missing-authentication-for-critical-function-vulnerability-in)
- [Fortinet FortiOS stack buffer overflow in WAD proxy](https://junglewise.ai/threats/cve-2026-126258-a-stack-based-buffer-overflow-vulnerability-in-fortinet-fortios)
- [Fortinet FortiOS out-of-bounds read in kernel](https://junglewise.ai/threats/cve-2026-126256-a-out-of-bounds-read-vulnerability-in-fortinet-fortios-8-0-0)
- [Fortinet FortiOS path traversal authentication bypass in SSH daemon](https://junglewise.ai/threats/cve-2026-126255-a-path-traversal-filedir-vulnerability-in-fortinet-fortios-8-0-0)
- [Fortinet FortiOS numeric truncation error in BGP daemon](https://junglewise.ai/threats/cve-2026-126254-a-numeric-truncation-error-vulnerability-in-fortinet-fortios-8-0)