High severityOSV Advisory· Published Feb 3, 2026· Updated Feb 3, 2026
Moodle: moodle: brute-force facilitation due to missing rate limiting in confirmation email service
CVE-2025-67853
Description
A flaw was found in Moodle. A remote attacker could exploit a lack of proper rate limiting in the confirmation email service. This vulnerability allows attackers to more easily enumerate or guess user credentials, facilitating brute-force attacks against user accounts.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
moodle/moodlePackagist | < 4.1.22 | 4.1.22 |
moodle/moodlePackagist | >= 4.4.0-beta, < 4.4.12 | 4.4.12 |
moodle/moodlePackagist | >= 4.5.0-beta, < 4.5.8 | 4.5.8 |
moodle/moodlePackagist | >= 5.0.0-beta, < 5.0.4 | 5.0.4 |
moodle/moodlePackagist | >= 5.1.0-beta, < 5.1.1 | 5.1.1 |
Affected products
3- osv-coords2 versions
< 4.1.22+ 1 more
- (no CPE)range: < 4.1.22
- (no CPE)range: < 4.1.22
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-5cx4-w4fh-fr57ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-67853ghsaADVISORY
- access.redhat.com/security/cve/CVE-2025-67853ghsavdb-entryx_refsource_REDHATWEB
- bugzilla.redhat.com/show_bug.cgighsaissue-trackingx_refsource_REDHATWEB
- moodle.org/mod/forum/discuss.phpghsaWEB
News mentions
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