CVE-2023-39955
Nextcloud Notes HTML Rendering Information Disclosure
Description
Notes is a note-taking app for Nextcloud, an open-source cloud platform. Starting in version 4.4.0 and prior to version 4.8.0, when creating a note file with HTML, the content is rendered in the preview instead of the file being offered to download. Nextcloud Notes app version 4.8.0 contains a patch for the issue. No known workarounds are available.
INFO
Published Date :
Aug. 10, 2023, 3:15 p.m.
Last Modified :
Aug. 16, 2023, 7:38 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.8
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-2023-39955.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/notes/pull/1031 | Patch |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6g88-37x7-4vw6 | Patch Vendor Advisory |
| https://hackerone.com/reports/1924355 | 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-2023-39955 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-39955 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]
Aug. 16, 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/nextcloud/notes/pull/1031 No Types Assigned https://github.com/nextcloud/notes/pull/1031 Patch Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6g88-37x7-4vw6 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6g88-37x7-4vw6 Patch, Vendor Advisory Changed Reference Type https://hackerone.com/reports/1924355 No Types Assigned https://hackerone.com/reports/1924355 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:nextcloud:notes:*:*:*:*:*:nextcloud:*:* versions from (including) 4.4.0 up to (excluding) 4.8.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-39955 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-2023-39955
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
0.35015
percentile