Chamilo LMS 1.11.14 Social Network Send Invitation social.lib.php cross site scripting

HistoryDiffrelatejsonxmlCTI

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.
3.2	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Chamilo LMS 1.11.14. This issue affects some unknown processing in the library main/inc/lib/social.lib.php of the component Social Network Send Invitation. Performing a manipulation results in cross site scripting. This vulnerability is known as CVE-2021-37391. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Chamilo LMS 1.11.14 (Content Management System). This affects some unknown functionality in the library main/inc/lib/social.lib.php of the component Social Network Send Invitation. 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 published 08/11/2021 as de43a77049771cce08ea7234c5c1510b5af65bc8. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-37391. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:main/inc/lib/social.lib.php it is possible to find vulnerable targets with Google Hacking.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Exploit-DB (50694). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Content Management System

Vendor

Chamilo

Name

Version

1.11.14

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

07/21/2021 🔍
08/11/2021 +21 days 🔍
08/11/2021 +0 days 🔍
05/03/2025 +1361 days 🔍

Sourcesinfo

Advisory: de43a77049771cce08ea7234c5c1510b5af65bc8
Status: Confirmed

CVE: CVE-2021-37391 (🔍)
GCVE (CVE): GCVE-0-2021-37391
GCVE (VulDB): GCVE-100-180525
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/11/2021 11:21
Updated: 05/03/2025 13:37
Changes: 08/11/2021 11:21 (41), 08/15/2021 14:26 (2), 12/07/2024 20:04 (23), 05/03/2025 13:37 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.