Advisory details:
gitlab / packagist/moodle/moodle/CVE-2021-27131
| Advisory ID | gitlab/packagist/moodle/moodle/CVE-2021-27131 |
| Aliases |
CVE-2021-27131
GHSA-w2pm-fr62-jgv4 |
| Summary | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 0.0 |
| Risk | |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/moodle/moodle/CVE-2021-27131.yml |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/moodle/moodle | ||
| https://github.com/p4nk4jv/CVEs-Assigned/blob/master/Moodle-3.10.1-CVE-2021-27131.md | ||
| CVE-2021-27131 | https://nvd.nist.gov/vuln/detail/CVE-2021-27131 | |
| GHSA-w2pm-fr62-jgv4 | https://github.com/advisories/GHSA-w2pm-fr62-jgv4 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.