要点
- CVE-2021-27131 是影响 moodle/moodle, moodle (moodle) 的中危 (CVSS 5.4)漏洞。
- 未来 30 天内被利用的概率（EPSS）：0.69%，高于 52.7% 的漏洞。
- 暂无已修复版本：请关注参考资料中的厂商公告。
| Package | Affected versions | Patched versions |
|---|
| moodle/moodle Packagist | ≤ 3.10.1
| No fix yet |
| moodle | = 3.10.1
| No fix yet |
Description
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 description
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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