CVE-2021-20185
Severity Score
5.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.
Se encontró en Moodle versiones anteriores a 3.10.1, 3.9.4, 3.8.7 y 3.5.16, que la mensajería no imponía un límite de caracteres al enviar mensajes, lo que podría resultar en la denegación de servicio del lado del cliente (navegador) para los usuarios que recibían mensajes muy grandes
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-12-17 CVE Reserved
- 2021-01-28 CVE Published
- 2023-10-14 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
- CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://moodle.org/mod/forum/discuss.php?d=417168 | 2022-10-21 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Moodle Search vendor "Moodle" | Moodle Search vendor "Moodle" for product "Moodle" | >= 3.5.0 < 3.5.16 Search vendor "Moodle" for product "Moodle" and version " >= 3.5.0 < 3.5.16" | - |
Affected
| ||||||
| Moodle Search vendor "Moodle" | Moodle Search vendor "Moodle" for product "Moodle" | >= 3.8.0 < 3.8.7 Search vendor "Moodle" for product "Moodle" and version " >= 3.8.0 < 3.8.7" | - |
Affected
| ||||||
| Moodle Search vendor "Moodle" | Moodle Search vendor "Moodle" for product "Moodle" | >= 3.9.0 < 3.9.4 Search vendor "Moodle" for product "Moodle" and version " >= 3.9.0 < 3.9.4" | - |
Affected
| ||||||
| Moodle Search vendor "Moodle" | Moodle Search vendor "Moodle" for product "Moodle" | 3.10.0 Search vendor "Moodle" for product "Moodle" and version "3.10.0" | - |
Affected
| ||||||