// For flags

CVE-2023-30606

Multisite denial of service through unsanitized dynamic dispatch to SiteSetting in Discourse

Severity Score

4.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Discourse is an open source platform for community discussion. In affected versions a user logged as an administrator can call arbitrary methods on the `SiteSetting` class, notably `#clear_cache!` and `#notify_changed!`, which when done on a multisite instance, can affect the entire cluster resulting in a denial of service. Users not running in multisite environments are not affected. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-04-13 CVE Reserved
  • 2023-04-18 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-11-08 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Discourse
Search vendor "Discourse"
Discourse
Search vendor "Discourse" for product "Discourse"
<= 3.0.1
Search vendor "Discourse" for product "Discourse" and version " <= 3.0.1"
stable
Affected
Discourse
Search vendor "Discourse"
Discourse
Search vendor "Discourse" for product "Discourse"
< 3.1.0
Search vendor "Discourse" for product "Discourse" and version " < 3.1.0"
beta
Affected
Discourse
Search vendor "Discourse"
Discourse
Search vendor "Discourse" for product "Discourse"
3.1.0
Search vendor "Discourse" for product "Discourse" and version "3.1.0"
beta1, beta
Affected
Discourse
Search vendor "Discourse"
Discourse
Search vendor "Discourse" for product "Discourse"
3.1.0
Search vendor "Discourse" for product "Discourse" and version "3.1.0"
beta2, beta
Affected