VDB-179376 · CVE-2021-36747 · GCVE-0-2021-36747

BlackBoard Learn up to 9.1 Feedback to Learner Form 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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in BlackBoard Learn up to 9.1. Affected is an unknown function of the component Feedback to Learner Form. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2021-36747. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in BlackBoard Learn up to 9.1 (Forum Software). It has been classified as problematic. Affected is an unknown functionality of the component Feedback to Learner Form. 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 released 07/22/2021. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-36747. 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.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Forum Software

Vendor

BlackBoard

Name

Learn

Version

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

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/14/2021 🔍
07/22/2021 +8 days 🔍
07/22/2021 +0 days 🔍
07/26/2021 +4 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2021-36747 (🔍)
GCVE (CVE): GCVE-0-2021-36747
GCVE (VulDB): GCVE-100-179376

Entryinfo

Created: 07/22/2021 06:19
Updated: 07/26/2021 14:21
Changes: 07/22/2021 06:19 (17), 07/22/2021 06:20 (20), 07/26/2021 14:18 (2), 07/26/2021 14:21 (18)
Complete: 🔍
Cache ID: 216::103