Cross-site scripting (XSS) vulnerability in the create list option in Sympa 4.1.x and earlier allows remote authenticated users to inject arbitrary web script or HTML via the description field.
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Cross-site scripting (XSS) vulnerability in the create list option in Sympa 4.1.x and earlier allows remote authenticated users to inject arbitrary web script or HTML via the description field.
August 21, 2004
April 16, 2026
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Sympa 4.x - New List HTML Injection
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2004-1735
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