6.5
MEDIUM
CVE-2023-25167
Discourse Regular Expression Denial of Service Vulnerability
Description

Discourse is an open source discussion platform. In affected versions a malicious user can cause a regular expression denial of service using a carefully crafted git URL. 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 issue.

INFO

Published Date :

Feb. 8, 2023, 8:15 p.m.

Last Modified :

Feb. 18, 2023, 9:48 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2023-25167 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-2023-25167.

URL Resource
https://github.com/discourse/discourse/commit/ec4c30270887366dc28788bc4ab8a22a098573cd Patch
https://github.com/discourse/discourse/security/advisories/GHSA-4w55-w26q-r35w 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).

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

The following list is the news that have been mention CVE-2023-25167 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-25167 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]

    Feb. 18, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/discourse/discourse/commit/ec4c30270887366dc28788bc4ab8a22a098573cd No Types Assigned https://github.com/discourse/discourse/commit/ec4c30270887366dc28788bc4ab8a22a098573cd Patch
    Changed Reference Type https://github.com/discourse/discourse/security/advisories/GHSA-4w55-w26q-r35w No Types Assigned https://github.com/discourse/discourse/security/advisories/GHSA-4w55-w26q-r35w Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.1 *cpe:2.3:a:discourse:discourse:3.1.0:beta1:*:*:beta:*:*:*
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-2023-25167 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-2023-25167 weaknesses.

Exploit Prediction

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

0.08 }} 0.01%

score

0.35557

percentile

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