CVE-2023-2808
Lack of URL normalization allows rendering previews for disallowed domains
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
Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.
*Credits:
xpx
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-05-19 CVE Reserved
- 2023-05-29 CVE Published
- 2024-08-02 CVE Updated
- 2024-11-08 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://mattermost.com/security-updates | 2023-06-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mattermost Search vendor "Mattermost" | Mattermost Search vendor "Mattermost" for product "Mattermost" | >= 5.34.0 < 7.1.9 Search vendor "Mattermost" for product "Mattermost" and version " >= 5.34.0 < 7.1.9" | - |
Affected
| ||||||
| Mattermost Search vendor "Mattermost" | Mattermost Search vendor "Mattermost" for product "Mattermost" | >= 7.2.0 < 7.8.4 Search vendor "Mattermost" for product "Mattermost" and version " >= 7.2.0 < 7.8.4" | - |
Affected
| ||||||
| Mattermost Search vendor "Mattermost" | Mattermost Search vendor "Mattermost" for product "Mattermost" | >= 7.9.0 < 7.9.3 Search vendor "Mattermost" for product "Mattermost" and version " >= 7.9.0 < 7.9.3" | - |
Affected
| ||||||