CVE-2023-36823
Sanitize vulnerable to Cross-site Scripting via insufficient neutralization of `style` element content
Description
Sanitize is an allowlist-based HTML and CSS sanitizer. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML and CSS through Sanitize starting with version 3.0.0 and prior to version 6.0.2 when Sanitize is configured to use the built-in "relaxed" config or when using a custom config that allows `style` elements and one or more CSS at-rules. This could result in cross-site scripting or other undesired behavior when the malicious HTML and CSS are rendered in a browser. Sanitize 6.0.2 performs additional escaping of CSS in `style` element content, which fixes this issue. Users who are unable to upgrade can prevent this issue by using a Sanitize config that doesn't allow `style` elements, using a Sanitize config that doesn't allow CSS at-rules, or by manually escaping the character sequence `</` as `<\/` in `style` element content.
INFO
Published Date :
July 6, 2023, 4:15 p.m.
Last Modified :
Nov. 21, 2024, 8:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2023-36823
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Upgrade the ruby-sanitize package.
- If unable to upgrade, configure Sanitize to disallow `style` elements or CSS at-rules, or escape the character sequence `</` as `<\/` in `style` element content.
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-2023-36823.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-36823 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-2023-36823
weaknesses.
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-2023-36823 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-36823 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/rgrove/sanitize/commit/76ed46e6dc70820f38efe27de8dabd54dddb5220 Added Reference https://github.com/rgrove/sanitize/releases/tag/v6.0.2 Added Reference https://github.com/rgrove/sanitize/security/advisories/GHSA-f5ww-cq3m-q3g7 Added Reference https://lists.debian.org/debian-lts-announce/2023/11/msg00008.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Dec. 22, 2023
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/11/msg00008.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/11/msg00008.html Mailing List Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 14, 2023
Action Type Old Value New Value Added Reference GitHub, Inc. https://lists.debian.org/debian-lts-announce/2023/11/msg00008.html [No types assigned] -
Initial Analysis by [email protected]
Jul. 13, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/rgrove/sanitize/commit/76ed46e6dc70820f38efe27de8dabd54dddb5220 No Types Assigned https://github.com/rgrove/sanitize/commit/76ed46e6dc70820f38efe27de8dabd54dddb5220 Patch Changed Reference Type https://github.com/rgrove/sanitize/releases/tag/v6.0.2 No Types Assigned https://github.com/rgrove/sanitize/releases/tag/v6.0.2 Release Notes Changed Reference Type https://github.com/rgrove/sanitize/security/advisories/GHSA-f5ww-cq3m-q3g7 No Types Assigned https://github.com/rgrove/sanitize/security/advisories/GHSA-f5ww-cq3m-q3g7 Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:sanitize_project:sanitize:*:*:*:*:*:ruby:*:* versions from (including) 3.0.0 up to (excluding) 6.0.2
Vulnerability Scoring Details
Base CVSS Score: 7.1
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.33 }} 0.12%
score
0.55434
percentile