4.3
MEDIUM
CVE-2023-49099
Discourse Guest Upload URL Access Vulnerability
Description

Discourse is a platform for community discussion. Under very specific circumstances, secure upload URLs associated with posts can be accessed by guest users even when login is required. This vulnerability has been patched in 3.2.0.beta4 and 3.1.4.

INFO

Published Date :

Jan. 12, 2024, 9:15 p.m.

Last Modified :

Jan. 25, 2024, 3:32 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2023-49099 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-49099 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Discourse discourse
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-49099.

URL Resource
https://github.com/discourse/discourse/commit/1b288236387fc0a823e4f15f1aea8dde81b49d53 Patch
https://github.com/discourse/discourse/security/advisories/GHSA-j67x-x6mq-pwv4 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
kip93/kip93

Custom GitHub profile 📃 README, periodically auto updated using actions.

profile readme profile-readme github-profile github-profile-readme actions github-actions automated metrics

Updated: 5 months, 1 week ago
0 stars 1 fork 1 watcher
Born at : Sept. 19, 2021, 6:02 a.m. This repo has been linked 24 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-49099 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-49099 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 25, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
    Changed Reference Type https://github.com/discourse/discourse/commit/1b288236387fc0a823e4f15f1aea8dde81b49d53 No Types Assigned https://github.com/discourse/discourse/commit/1b288236387fc0a823e4f15f1aea8dde81b49d53 Patch
    Changed Reference Type https://github.com/discourse/discourse/security/advisories/GHSA-j67x-x6mq-pwv4 No Types Assigned https://github.com/discourse/discourse/security/advisories/GHSA-j67x-x6mq-pwv4 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* versions up to (excluding) 3.1.4 *cpe:2.3:a:discourse:discourse:3.2.0:beta1:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:3.2.0:beta2:*:*:beta:*:*:* *cpe:2.3:a:discourse:discourse:3.2.0:beta3:*:*:beta:*:*:*
  • CVE Received by [email protected]

    Jan. 12, 2024

    Action Type Old Value New Value
    Added Description Discourse is a platform for community discussion. Under very specific circumstances, secure upload URLs associated with posts can be accessed by guest users even when login is required. This vulnerability has been patched in 3.2.0.beta4 and 3.1.4.
    Added Reference GitHub, Inc. https://github.com/discourse/discourse/security/advisories/GHSA-j67x-x6mq-pwv4 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/discourse/discourse/commit/1b288236387fc0a823e4f15f1aea8dde81b49d53 [No types assigned]
    Added CWE GitHub, Inc. CWE-284
    Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-49099 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-49099 weaknesses.

CAPEC-19: Embedding Scripts within Scripts Embedding Scripts within Scripts CAPEC-441: Malicious Logic Insertion Malicious Logic Insertion CAPEC-478: Modification of Windows Service Configuration Modification of Windows Service Configuration CAPEC-479: Malicious Root Certificate Malicious Root Certificate CAPEC-502: Intent Spoof Intent Spoof CAPEC-503: WebView Exposure WebView Exposure CAPEC-536: Data Injected During Configuration Data Injected During Configuration CAPEC-546: Incomplete Data Deletion in a Multi-Tenant Environment Incomplete Data Deletion in a Multi-Tenant Environment CAPEC-550: Install New Service Install New Service CAPEC-551: Modify Existing Service Modify Existing Service CAPEC-552: Install Rootkit Install Rootkit CAPEC-556: Replace File Extension Handlers Replace File Extension Handlers CAPEC-558: Replace Trusted Executable Replace Trusted Executable CAPEC-562: Modify Shared File Modify Shared File CAPEC-563: Add Malicious File to Shared Webroot Add Malicious File to Shared Webroot CAPEC-564: Run Software at Logon Run Software at Logon CAPEC-578: Disable Security Software Disable Security Software
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} 0.00%

score

0.13772

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: