PT-2023-18872 · Marktext · Marktext

Cursered + 1 · Published 2023-08-18 · Updated 2024-01-25 · CVE-2023-2318

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions MarkText versions 0.17.1 and before

Description The issue is a DOM-based XSS that allows arbitrary JavaScript code to run in the context of the MarkText main window. This can be exploited if a user copies text from a malicious webpage and pastes it into MarkText. The vulnerability is located in the src/muya/lib/contentState/pasteCtrl.js file.

Recommendations For MarkText versions 0.17.1 and before, consider disabling the paste functionality in the pasteCtrl.js file as a temporary workaround until a patch is available. Restrict access to the contentState module to minimize the risk of exploitation. Avoid using the MarkText application to paste content from untrusted sources until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2023-2318

Affected Products

Marktext

References · 11

• 🔥 https://github.com/marktext/marktext/issues/3618 · Exploit
• 🔥 https://starlabs.sg/advisories/23/23-2318 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-2318 · Security Note
• https://osv.dev/vulnerability/CVE-2023-2318 · Vendor Advisory
• https://t.me/cibsecurity/68860 · Telegram Post
• https://twitter.com/buaqbot/status/1750747409184141544 · Twitter Post
• https://t.me/cvenotify/56943 · Telegram Post
• https://t.me/cvenotify/56922 · Telegram Post
• https://twitter.com/CVEnew/status/1692776756204183734 · Twitter Post
• https://t.me/cvenotify/57176 · Telegram Post
• https://twitter.com/geekphane/status/1693859670685847586 · Twitter Post