CVE-2026-102586

mediumpriority · track · 24EPSS 0.003 · 20 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.28% (20th) EPSS

CVSS 6.1 · medium

Is it mine?

16 products

Check your exposure

Who says so?

3 sources

cert_bund · nvd · osv

EPSS · scored 2026-10-27

A flaw was found in Moodle. Insufficient sanitization of username input on the password reset page allows a remote attacker to conduct a cross-site scripting (XSS) attack. By convincing an unauthenticated user to access a specially crafted password reset link, an attacker could execute arbitrary script in the victim's browser.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:Nsecondary · patrick@puiterwijk.orgexploitability 2.8 · impact 1.4

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79US

affected products (16)

Products and version ranges known to be affected.

Open Source Moodle <4.5.13all versionscert_bundDE
Open Source Moodle <5.0.9all versionscert_bundDE
Open Source Moodle <5.1.6all versionscert_bundDE
Open Source Moodle <5.2.2all versionscert_bundDE
Open Source Moodle< 4.5.13cert_bundDE
Open Source Moodle< 5.0.9cert_bundDE
Open Source Moodle< 5.1.6cert_bundDE
Open Source Moodle< 5.2.2cert_bundDE
moodle moodle< 4.5.13nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle5.0.0 → 5.0.9nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle5.1.0 → 5.1.6nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle5.2.0 → 5.2.2nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Bitnami moodle< 4.5.13osvUSpkg:bitnami/moodle
Bitnami moodle5.0.0 → 5.0.9osvUSpkg:bitnami/moodle
Bitnami moodle5.1.0 → 5.1.6osvUSpkg:bitnami/moodle
Bitnami moodle5.2.0 → 5.2.2osvUSpkg:bitnami/moodle

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3686Moodle: Mehrere SchwachstellenDeutsch2026-09-30csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Moodle ausnutzen, um Dateien zu manipulieren, Daten offenzulegen oder Cross-Site-Scripting-Angriffe durchzuführen.
BIT-moodle-2026-102586Moodle: xss via password reset link due to insufficient username escaping2026-10-05vendor · osvUS
A flaw was found in Moodle. Insufficient sanitization of username input on the password reset page allows a remote attacker to conduct a cross-site scripting (XSS) attack. By convincing an unauthenticated user to access a specially crafted password reset link, an attacker could execute arbitrary script in the victim's browser.

sources

Which sources assert this record, and when.

cert_bund nvd osv NVD CVE.org MITRE

published 2026-09-30modified 2026-10-01

references (4) nvd

External citations — patches, advisories, analysis.

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-88335Patch
https://access.redhat.com/security/cve/CVE-2026-102586Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2543641Issue TrackingThird Party Advisory
https://moodle.org/mod/forum/discuss.php?d=482504Vendor Advisory

scry

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