要点
- CVE-2021-27131 は moodle/moodle, moodle (moodle) に影響する深刻度「中」 (CVSS 5.4) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.69%（全脆弱性の 52.7% より高い）。
- 修正版の情報はまだありません。参考情報のベンダー勧告を確認してください。
概要
Moodle 3.10.1 is vulnerable to persistent/stored cross-site scripting (XSS) due to the improper input sanitization on the "Additional HTML Section" via "Header and Footer" parameter in /admin/settings.php. This vulnerability may lead an attacker to steal admin and all user account cookies by storing the malicious XSS payload in Header and Footer.
NVD の説明
Moodle 3.10.1 is vulnerable to persistent/stored cross-site scripting (XSS) due to the improper input sanitization on the "Additional HTML Section" via "Header and Footer" parameter in /admin/settings.php. This vulnerability is leading an attacker to steal admin and all user account cookies by storing the malicious XSS payload in Header and Footer. NOTE: this is disputed by the vendor because the "Additional HTML Section" for "Header and Footer" can only be supplied by an administrator, who is intentionally allowed to enter unsanitized input (e.g., site-specific JavaScript).
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