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The vulnerability in Mozilla Firefox, Firefox ESR, and the email client Thunderbird arises from incorrect encoding or the concealment of output data, allowing attackers to perform cross-site scripting (XSS) attacks.
🗓️ 23 Oct 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 1 Views
| Reporter | Title | Published | Views | Family All 417 |
|---|---|---|---|---|
 | Mozilla -- XSS in sites without content-type header | 14 Oct 202500:00 | – | freebsd |
 | CVE-2025-11712 | 14 Oct 202512:27 | – | attackerkb |
 | Amazon Linux 2023 : firefox (ALAS2023-2025-1246) | 28 Oct 202500:00 | – | nessus |
| Amazon Linux 2 : thunderbird, --advisory ALAS2-2025-3052 (ALAS-2025-3052) | 28 Oct 202500:00 | – | nessus |
| Amazon Linux 2 : firefox, --advisory ALAS2FIREFOX-2025-044 (ALASFIREFOX-2025-044) | 28 Oct 202500:00 | – | nessus |
| AlmaLinux 10 : firefox (ALSA-2025:18154) | 21 Oct 202500:00 | – | nessus |
| AlmaLinux 9 : firefox (ALSA-2025:18155) | 21 Oct 202500:00 | – | nessus |
| AlmaLinux 8 : firefox (ALSA-2025:18285) | 21 Oct 202500:00 | – | nessus |
| AlmaLinux 10 : thunderbird (ALSA-2025:18320) | 22 Oct 202500:00 | – | nessus |
| AlmaLinux 9 : thunderbird (ALSA-2025:18321) | 22 Oct 202500:00 | – | nessus |
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07 Jul 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 36.1
CVSS 26.4
EPSS0.00256