Yüksek CVSS 7.6
CVE-2026-62854: CVE-2026-62854: siteler arası betik çalıştırma (XSS)
Açıklama (NVD)
FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.225, a user who can edit a mailbox signature can combine a scriptable file uploaded through /uploads/upload with nested tag fragments that bypass Helper::stripDangerousTags(). The resulting external script is served from the same origin, so the script-src 'self' policy permits it when another user opens the affected mailbox reply editor or new-ticket page. The script executes with the victim's FreeScout privileges and can read visible data and perform same-origin actions. This issue is fixed in version 1.8.225.
Özet bilgiler
- CVSS v3.1
- 7.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N - CWE
- CWE-79
- Yama
- Yok / bilinmiyor