CVE-2021-27131

Source

https://nvd.nist.gov/vuln/detail/CVE-2021-27131

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27131.json

Aliases

• BIT-moodle-2021-27131
• GHSA-w2pm-fr62-jgv4

Withdrawn

2023-06-14T00:00:00Z

Published

2023-05-16T20:15:08Z

Modified

2023-12-06T01:00:58.899824Z

Details

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).

References

• https://github.com/p4nk4jv/CVEs-Assigned/blob/master/Moodle-3.10.1-CVE-2021-27131.md
• https://docs.moodle.org/402/en/Risks
• https://github.com/moodle/moodle