Concrete CMS up to 8.5.4 Survey Block cross site scripting

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
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.
4.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Concrete CMS up to 8.5.4. This affects an unknown part of the component Survey Block Handler. Performing a manipulation results in cross site scripting. This vulnerability is cataloged as CVE-2021-28145. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Concrete CMS up to 8.5.4 (Content Management System). This affects an unknown functionality of the component Survey Block Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity.

The weakness was shared 03/19/2021. It is possible to read the advisory at documentation.concrete5.org. This vulnerability is uniquely identified as CVE-2021-28145. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 8.5.5 eliminates this vulnerability. The upgrade is hosted for download at documentation.concrete5.org.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CMS 8.5.5

Timelineinfo

03/11/2021 🔍
03/19/2021 +8 days 🔍
03/19/2021 +0 days 🔍
04/02/2021 +14 days 🔍

Sourcesinfo

Advisory: documentation.concrete5.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-28145 (🔍)
GCVE (CVE): GCVE-0-2021-28145
GCVE (VulDB): GCVE-100-171459

Entryinfo

Created: 03/19/2021 09:43
Updated: 04/02/2021 23:45
Changes: 03/19/2021 09:43 (40), 04/02/2021 23:41 (6), 04/02/2021 23:45 (18)
Complete: 🔍
Cache ID: 216::103

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