CVE-2025-67853
highpriority · track · 0EPSS 0.005 · 40 %ileDEEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2851Moodle: Mehrere SchwachstellenDeutsch2025-12-15csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Moodle ausnutzen, um beliebigen Programmcode auszuführen, Benutzer auf bösartige Websites umzuleiten, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder vertrauliche Informationen offenzulegen.
- GHSA-5cx4-w4fh-fr57Moodle Affected by Improper Restriction of Excessive Authentication Attempts2026-02-03ghsa · osvUS
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.
- BIT-moodle-2025-67853Moodle: moodle: brute-force facilitation due to missing rate limiting in confirmation email service2026-02-12vendor · osvUS
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.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2025-67853cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2423847cnnvd
- https://access.redhat.com/security/cve/CVE-2025-67853enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2423847enisa_euvd
- https://access.redhat.com/security/cve/CVE-2025-67853Third Party Advisorynvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2423847Third Party Advisorynvd
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