Mistune Heading ID Attribute 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-v87v-83h2-53w7 | Mistune Heading ID Attribute has 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 |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mistune Project
Mistune Project mistune |
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| CPEs | cpe:2.3:a:mistune_project:mistune:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mistune Project
Mistune Project mistune |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lepture
Lepture mistune |
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| 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, HTMLRenderer.heading() builds the opening <hN> tag by string-concatenating the id attribute value directly into the HTML — with no call to escape(), safe_entity(), or any other sanitisation function. A double-quote character " in the id value terminates the attribute, allowing an attacker to inject arbitrary additional attributes (event handlers, src=, href=, etc.) into the heading element. This vulnerability is fixed in 3.2.1. | |
| Title | Mistune Heading ID Attribute Injection XSS | |
| Weaknesses | CWE-79 | |
| References |
| |
| Metrics |
cvssV3_1
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