{"schema_version":1,"title":"express-xss-sanitizer (npm) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in express-xss-sanitizer (npm): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-33979, was published on 27 March 2026.","url":"https://junglewise.ai/threats/technologies/express-xss-sanitizer","json_url":"https://junglewise.ai/threats/technologies/express-xss-sanitizer.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/express-xss-sanitizer","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":1},"latest":[{"cve":"CVE-2026-33979","cvss":3.1,"epss":0.0042,"slug":"cve-2026-33979-ahmedadelfahim-express-xss-sanitizer-permissive-sanitization","title":"express-xss-sanitizer configuration bypass leads to permissive HTML sanitization","severity":"low","exploited":false,"published_at":"2026-03-27T17:56:45+00:00","url":"https://junglewise.ai/threats/cve-2026-33979-ahmedadelfahim-express-xss-sanitizer-permissive-sanitization"},{"cve":"CVE-2025-59364","cvss":4,"epss":0.0045,"slug":"cve-2025-59364-express-xss-sanitizer-unbounded-recursion-denial-of-service","title":"express-xss-sanitizer unbounded recursion denial of service","severity":"medium","exploited":false,"published_at":"2025-09-26T14:38:13+00:00","url":"https://junglewise.ai/threats/cve-2025-59364-express-xss-sanitizer-unbounded-recursion-denial-of-service"},{"cvss":4,"slug":"express-xss-sanitizer-unbounded-recursion-in-sanitize-function-e4c60884","title":"express-xss-sanitizer unbounded recursion in sanitize function","severity":"medium","exploited":false,"published_at":"2025-09-15T00:30:15+00:00","url":"https://junglewise.ai/threats/express-xss-sanitizer-unbounded-recursion-in-sanitize-function-e4c60884"},{"cve":"CVE-2022-21169","cvss":3.1,"epss":0.0095,"slug":"cve-2022-21169-express-xss-sanitizer-prototype-pollution-bypass-in-allowedtags","title":"express-xss-sanitizer prototype pollution bypass in allowedTags","severity":"low","exploited":false,"published_at":"2022-09-27T00:00:22+00:00","url":"https://junglewise.ai/threats/cve-2022-21169-express-xss-sanitizer-prototype-pollution-bypass-in-allowedtags"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"flowise (npm)","slug":"flowise","vulnerabilities":156,"url":"https://junglewise.ai/threats/technologies/flowise"},{"name":"vm2 (npm)","slug":"vm2","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/vm2"},{"name":"@budibase/server (npm)","slug":"budibase-server","vulnerabilities":61,"url":"https://junglewise.ai/threats/technologies/budibase-server"},{"name":"directus (npm)","slug":"directus","vulnerabilities":60,"url":"https://junglewise.ai/threats/technologies/directus"},{"name":"nocodb (npm)","slug":"nocodb","vulnerabilities":55,"url":"https://junglewise.ai/threats/technologies/nocodb"},{"name":"hono (npm)","slug":"hono","vulnerabilities":54,"url":"https://junglewise.ai/threats/technologies/hono"},{"name":"parse-server (npm)","slug":"parse-server","vulnerabilities":42,"url":"https://junglewise.ai/threats/technologies/parse-server"},{"name":"dompurify (npm)","slug":"dompurify","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/dompurify"},{"name":"ghost (npm)","slug":"ghost","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/ghost"},{"name":"flowise-components (npm)","slug":"flowise-components","vulnerabilities":35,"url":"https://junglewise.ai/threats/technologies/flowise-components"},{"name":"astro (npm)","slug":"astro","vulnerabilities":30,"url":"https://junglewise.ai/threats/technologies/astro"},{"name":"@anthropic-ai/claude-code (npm)","slug":"anthropic-ai-claude-code","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/anthropic-ai-claude-code"}],"technology":{"hub":true,"name":"express-xss-sanitizer (npm)","slug":"express-xss-sanitizer","vendor":{"name":"npm","slug":"npm","url":"https://junglewise.ai/threats/vendors/npm"},"aliases":[],"category":"library","homepage":"https://www.npmjs.com/package/express-xss-sanitizer","repo_url":"https://github.com/Ahmed-Adel-Fahim/express-xss-sanitizer","description":"An Express middleware for sanitizing user input to prevent cross-site scripting attacks.","url":"https://junglewise.ai/threats/technologies/express-xss-sanitizer"},"most_severe":[{"cve":"CVE-2025-59364","cvss":4,"epss":0.0045,"slug":"cve-2025-59364-express-xss-sanitizer-unbounded-recursion-denial-of-service","title":"express-xss-sanitizer unbounded recursion denial of service","severity":"medium","exploited":false,"published_at":"2025-09-26T14:38:13+00:00","url":"https://junglewise.ai/threats/cve-2025-59364-express-xss-sanitizer-unbounded-recursion-denial-of-service"},{"cvss":4,"slug":"express-xss-sanitizer-unbounded-recursion-in-sanitize-function-e4c60884","title":"express-xss-sanitizer unbounded recursion in sanitize function","severity":"medium","exploited":false,"published_at":"2025-09-15T00:30:15+00:00","url":"https://junglewise.ai/threats/express-xss-sanitizer-unbounded-recursion-in-sanitize-function-e4c60884"},{"cve":"CVE-2022-21169","cvss":3.1,"epss":0.0095,"slug":"cve-2022-21169-express-xss-sanitizer-prototype-pollution-bypass-in-allowedtags","title":"express-xss-sanitizer prototype pollution bypass in allowedTags","severity":"low","exploited":false,"published_at":"2022-09-27T00:00:22+00:00","url":"https://junglewise.ai/threats/cve-2022-21169-express-xss-sanitizer-prototype-pollution-bypass-in-allowedtags"},{"cve":"CVE-2026-33979","cvss":3.1,"epss":0.0042,"slug":"cve-2026-33979-ahmedadelfahim-express-xss-sanitizer-permissive-sanitization","title":"express-xss-sanitizer configuration bypass leads to permissive HTML sanitization","severity":"low","exploited":false,"published_at":"2026-03-27T17:56:45+00:00","url":"https://junglewise.ai/threats/cve-2026-33979-ahmedadelfahim-express-xss-sanitizer-permissive-sanitization"}],"generated_at":"2026-09-27T03:07:00.185062+00:00"}