Mistune TOC Anchor Injection XSS
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| lepture | mistune | affected |
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lepture | Mistune |
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-6269-cqxg-mhhv | Mistune TOC Anchor Injection XSS |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.228% probability within 30 days)
| 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 |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lepture
Lepture mistune |
|
| Vendors & Products |
Lepture
Lepture mistune |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, render_toc_ul() builds a <ul> table-of-contents tree from a list of (level, id, text) tuples. Both the id value (used as href="#<id>") and the text value (used as the visible link label) are inserted into <a> tags via a plain Python format string — with no HTML escaping applied to either value. When heading IDs are derived from user-supplied heading text (the standard use-case for readable slug anchors), an attacker can craft a heading whose text breaks out of the href="#..." attribute context, injecting arbitrary HTML tags including <script> blocks directly into the rendered TOC. This vulnerability is fixed in 3.2.1. | |
| Title | Mistune TOC Anchor Injection XSS | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_1
|