Dashboard / CVE-2026-59923

CVE-2026-59923

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 62/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safe_url() does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. This issue is fixed in version 3.3.0.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
mistune_project mistune < 3.3.0

References & Advisories (3)

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.35%
Raw Score 0.003480
Percentile 28.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00348
2026-10-28
0.00348

Intelligence Sources

nvd ref →

External Links