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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-58cw-g322-p94v | Mistune has XSS via unescaped figclass/figwidth in Figure directive |
Mon, 08 Jun 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mistune is a Python Markdown parser with renderers and plugins. In 3.2.0 and realier, in src/mistune/directives/image.py, the render_figure() function concatenates figclass and figwidth options directly into HTML attributes without escaping. This allows attribute injection and XSS even when HTMLRenderer(escape=True) is used, because these values bypass the inline renderer. | Mistune is a Python Markdown parser with renderers and plugins. In 3.2.0 and earlier, in src/mistune/directives/image.py, the render_figure() function concatenates figclass and figwidth options directly into HTML attributes without escaping. This allows attribute injection and XSS even when HTMLRenderer(escape=True) is used, because these values bypass the inline renderer. Version 3.2.1 contains a patch. |
| References |
|
Thu, 28 May 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mistune Project
Mistune Project mistune |
|
| CPEs | cpe:2.3:a:mistune_project:mistune:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mistune Project
Mistune Project mistune |
|
| Metrics |
cvssV3_1
|
Wed, 27 May 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 26 May 2026 23:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lepture
Lepture mistune |
|
| Vendors & Products |
Lepture
Lepture mistune |
Tue, 26 May 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mistune is a Python Markdown parser with renderers and plugins. In 3.2.0 and realier, in src/mistune/directives/image.py, the render_figure() function concatenates figclass and figwidth options directly into HTML attributes without escaping. This allows attribute injection and XSS even when HTMLRenderer(escape=True) is used, because these values bypass the inline renderer. | |
| Title | Mistune: XSS via unescaped figclass/figwidth in Figure directive | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-08T23:34:02.448Z
Reserved: 2026-05-07T21:50:33.546Z
Link: CVE-2026-44896
Updated: 2026-05-27T13:18:49.782Z
Status : Modified
Published: 2026-05-26T21:16:39.477
Modified: 2026-06-17T10:51:29.943
Link: CVE-2026-44896
No data.
OpenCVE Enrichment
Updated: 2026-06-09T01:30:26Z
Github GHSA