CVE-2021-20186 is a stored Cross-Site Scripting (XSS) vulnerability affecting Moodle versions prior to 3.10.1, 3.9.4, 3.8.7, and 3.5.16. The flaw occurs when the TeX notation filter is enabled, failing to adequately sanitize TeX content. Rated Medium severity (CVSS 5.4), it requires low privileges and user interaction, potentially leading to limited impact on confidentiality and integrity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.5.16CPE matchmatch criteria | cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* | ||
>= 3.8.0, < 3.8.7CPE matchmatch criteria | cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* | ||
>= 3.9.0, < 3.9.4CPE matchmatch criteria | cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* | ||
>= 3.10.0, < 3.10.1CPE matchmatch criteria | cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.