Vulnerability · Published Mar 15, 2021 · Assigned by redhat
CVE-2021-20280
Medium 5.4
In plain English
A medium-severity cross-site scripting in moodle. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)1.3%top 30.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Text-based feedback answers required additional sanitizing to prevent stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | moodle/moodle | 3.10.2 | GHSA-x2jp-hh65-4xvf |
| Packagist | moodle/moodle | 3.9.5 | GHSA-x2jp-hh65-4xvf |
| Packagist | moodle/moodle | 3.8.8 | GHSA-x2jp-hh65-4xvf |
| Packagist | moodle/moodle | 3.5.17 | GHSA-x2jp-hh65-4xvf |
Affected products (as reported)
Weakness: CWE-79
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1939037 x_refsource_MISC
- https://moodle.org/mod/forum/discuss.php?d=419651 x_refsource_MISC
- FEDORA-2021-1c27e89d49 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-50f63a0161 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-431b232659 vendor-advisory, x_refsource_FEDORA
- http://packetstormsecurity.com/files/164817/Moodle-Cross-Site-Scripting-Server-Side-Request-Forgery.html x_refsource_MISC