CVE ID :CVE-2026-7808
Published : Aug. 23, 2026, 2:16 p.m. | 10 hours, 17 minutes ago
Description :justhtml before 1.16.0 contains multiple HTML sanitization bypass issues that can allow active/dangerous content (e.g., script or style) to survive sanitization, potentially leading to cross-site scripting. The issues primarily affect advanced usage rather than the default JustHTML(…, sanitize=True) path for ordinary parsed HTML: mutating or reusing sanitization policy objects (including exported defaults) could weaken later sanitization; programmatic DOM input to sanitize()/sanitize_dom() could miss mixed-case tag names (e.g., ScRiPt, StYlE); crafted programmatic doctype names could serialize into active markup; and custom policies preserving SVG or MathML could allow animation elements, presentation attributes with external url(…) references, or DOM trees mislabeled as namespace=”html” to bypass foreign-content checks. Fixed in 1.16.0.
Severity: 9.8 | CRITICAL
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Published : Aug. 23, 2026, 2:16 p.m. | 10 hours, 17 minutes ago
Description :justhtml before 1.16.0 contains multiple HTML sanitization bypass issues that can allow active/dangerous content (e.g., script or style) to survive sanitization, potentially leading to cross-site scripting. The issues primarily affect advanced usage rather than the default JustHTML(…, sanitize=True) path for ordinary parsed HTML: mutating or reusing sanitization policy objects (including exported defaults) could weaken later sanitization; programmatic DOM input to sanitize()/sanitize_dom() could miss mixed-case tag names (e.g., ScRiPt, StYlE); crafted programmatic doctype names could serialize into active markup; and custom policies preserving SVG or MathML could allow animation elements, presentation attributes with external url(…) references, or DOM trees mislabeled as namespace=”html” to bypass foreign-content checks. Fixed in 1.16.0.
Severity: 9.8 | CRITICAL
Visit the link for more details, such as CVSS details, affected products, timeline, and more…