5.4
MEDIUM
CVE-2022-39270
Discourse DiscoTOC Arbitrary HTML Injection Vulnerability
Description

DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component's settings) are able to inject arbitrary HTML on that topic's page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -> Themes -> Components -> DiscoTOC -> Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component.

INFO

Published Date :

Oct. 6, 2022, 6:16 p.m.

Last Modified :

Nov. 10, 2022, 4:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.3
Affected Products

The following products are affected by CVE-2022-39270 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 discotoc
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-2022-39270.

URL Resource
https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192 Patch Third Party Advisory
https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h Third Party 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-2022-39270 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-39270 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
  • Modified Analysis by [email protected]

    Nov. 10, 2022

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 11, 2022

    Action Type Old Value New Value
    Removed Reference https://www.cve.org/CVERecord?id=CVE-2022-39270 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 11, 2022

    Action Type Old Value New Value
    Added Reference https://www.cve.org/CVERecord?id=CVE-2022-39270 [No Types Assigned]
    Added CWE GitHub, Inc. CWE-79
  • Initial Analysis by [email protected]

    Oct. 07, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192 No Types Assigned https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192 Patch, Third Party Advisory
    Changed Reference Type https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h No Types Assigned https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h Third Party Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:discourse:discotoc:*:*:*:*:*:*:*:* versions up to (excluding) 2.1.0
  • CVE Modified by [email protected]

    Oct. 07, 2022

    Action Type Old Value New Value
    Removed CWE GitHub, Inc. CWE-79
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-2022-39270 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-2022-39270 weaknesses.

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

0.18007

percentile

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