Fortinet FortiWeb up to 6.3.15/6.4.1 SAML Login cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Fortinet FortiWeb up to 6.3.15/6.4.1 and classified as problematic. This affects an unknown part of the component SAML Login Handler. Such manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2021-41015. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Fortinet FortiWeb up to 6.3.15/6.4.1 and classified as problematic. Affected by this issue is an unknown code of the component SAML Login Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity.

The weakness was disclosed 12/08/2021 as FG-IR-21-139. The advisory is shared for download at fortiguard.com. This vulnerability is handled as CVE-2021-41015 since 09/13/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability scanner Nessus provides a plugin with the ID 209723 (Fortinet FortiWeb xss (FG-IR-21-139)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (209723). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (Fortinet, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209723
Nessus Name: Fortinet FortiWeb xss (FG-IR-21-139)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/13/2021 🔍
12/08/2021 +86 days 🔍
12/08/2021 +0 days 🔍
05/02/2025 +1241 days 🔍

Sourcesinfo

Vendor: fortinet.com

Advisory: FG-IR-21-139
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41015 (🔍)
GCVE (CVE): GCVE-0-2021-41015
GCVE (VulDB): GCVE-100-187772

Entryinfo

Created: 12/08/2021 17:42
Updated: 05/02/2025 20:32
Changes: 12/08/2021 17:42 (48), 12/11/2021 10:37 (2), 12/11/2021 10:43 (7), 12/11/2021 10:48 (1), 10/27/2024 00:39 (16), 05/02/2025 20:32 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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