Aggregates CVE and security vulnerability intelligence across all express_xss_sanitizer_project-related products, including CVSS, EPSS, publication dates, and vulnerability intelligence data.
Historical issues mainly involve vendor risk cross-site scripting and related problems; some flaws may lead to vendor impact session compromise, affecting vendor surface software deployment scenarios.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2026-33979 | Express XSS Sanitizer is Express 4.x and 5.x middleware which sanitizes user input data (in req.body, req.query, req.headers and req.params) to prevent Cross Site Scripting (XSS) attack. A vulnerability has been identified in versions prior to 2.0.2 where restrictive sanitization configurations are silently ignored. In version 2.0.2, the validation logic has been updated to respect explicitly provided empty configurations. Now, if allowedTags or allowedAttributes are provided (even if empty), th | [email protected] | 8.2 | 0.38% | 2026-03-27 | 2026-06-17 |
| CVE-2025-59364 | The express-xss-sanitizer (aka Express XSS Sanitizer) package through 2.0.0 for Node.js has an unbounded recursion depth in sanitize in lib/sanitize.js for a JSON request body. | [email protected] | 5.3 | 0.42% | 2025-09-14 | 2026-06-17 |
| CVE-2022-21169 | The package express-xss-sanitizer before 1.1.3 are vulnerable to Prototype Pollution via the allowedTags attribute, allowing the attacker to bypass xss sanitization. | [email protected] | 7.3 | 0.72% | 2022-09-26 | 2026-06-17 |