CVE-2021-20280
unknown
CVSS v3
—
CVSS v4 NEW
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VIR risk
—
Description
Cross-site scripting (XSS) and Server side request forgery (SSRF) in moodle
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist | moodle/moodle | >=3.10,<3.10.2 | 3.10.2 |
| Packagist | moodle/moodle | >=3.9,<3.9.5 | 3.9.5 |
| Packagist | moodle/moodle | >=3.8,<3.8.8 | 3.8.8 |
| Packagist | moodle/moodle | >=3.5,<3.5.17 | 3.5.17 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-20280
- https://github.com/moodle/moodle/commit/a303eb9e9e387f95ea2a80cb1ce6c0b132ec1cc4
- https://bugzilla.redhat.com/show_bug.cgi?id=1939037
- https://github.com/moodle/moodle
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AFSNJ7XHVTC52RSRX2GBQFF3VEEAY2MS
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FGOMHMYM3WICJ6D6U22Z6LPJGT5A6MZM
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFH5DDMU5TZ3JT4Q52WMRAHACA5MHIMT
- https://moodle.org/mod/forum/discuss.php?d=419651
- http://packetstormsecurity.com/files/164817/Moodle-Cross-Site-Scripting-Server-Side-Request-Forgery.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.