October CMS up to 1.1.1 Host Header http headers for scripting syntax

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in October CMS up to 1.1.1. The affected element is an unknown function of the component Host Header Handler. Such manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2021-21265. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in October CMS up to 1.1.1 (Content Management System) and classified as critical. Affected by this issue is an unknown function of the component Host Header Handler. Using CWE to declare the problem leads to CWE-644. The product does not neutralize or incorrectly neutralizes web scripting syntax in HTTP headers that can be used by web browser components that can process raw headers, such as Flash. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 03/11/2021. The advisory is available at github.com. This vulnerability is handled as CVE-2021-21265. The technical details are unknown and an exploit is not available.

Upgrading to version 1.1.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (GitHub, 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: Improper neutralization of http headers for scripting syntax
CWE: CWE-644
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CMS 1.1.2
Patch: github.com

Timelineinfo

12/22/2020 🔍
03/11/2021 +79 days 🔍
03/11/2021 +0 days 🔍
05/30/2025 +1541 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21265 (🔍)
GCVE (CVE): GCVE-0-2021-21265
GCVE (VulDB): GCVE-100-171122

Entryinfo

Created: 03/11/2021 12:13
Updated: 05/30/2025 02:38
Changes: 03/11/2021 12:13 (38), 03/31/2021 14:10 (6), 03/31/2021 14:13 (20), 05/30/2025 02:38 (26)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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