CVE-2018-1136

mediumpriority · track · 17EPSS 0.011 · 64 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.06% (64th) EPSS

CVSS 4 · medium

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

An issue was discovered in Moodle 3.x. An authenticated user is allowed to add HTML blocks containing scripts to their Dashboard; this is normally not a security issue because a personal dashboard is visible to this user only. Through this security vulnerability, users can move such a block to other pages where they can be viewed by other users.

cvss

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

4.3

010

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

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.04.3mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.04.3mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · OSV

v3.04mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (9)

Products and version ranges known to be affected.

n/a Moodle 3.x unknown≤ Moodle 3.x unknownenisa_euvdEU
moodle moodle3.1.0 → 3.1.11nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle3.2.0 → 3.2.8nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle3.3.0 → 3.3.5nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle3.4.0 → 3.4.2nvdUScpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
Packagist moodle/moodle3.1 → 3.1.12osvUSpkg:composer/moodle/moodle
Packagist moodle/moodle3.2 → 3.2.9osvUSpkg:composer/moodle/moodle
Packagist moodle/moodle3.3 → 3.3.6osvUSpkg:composer/moodle/moodle
Packagist moodle/moodle3.4 → 3.4.3osvUSpkg:composer/moodle/moodle

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-xhfw-wjjc-4j5hMoodle Cross-site Scripting2022-05-13ghsa · osvUS
An issue was discovered in Moodle 3.x. An authenticated user is allowed to add HTML blocks containing scripts to their Dashboard; this is normally not a security issue because a personal dashboard is visible to this user only. Through this security vulnerability, users can move such a block to other pages where they can be viewed by other users.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2018-05-25modified 2026-06-17

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+53015 more

references (6)

External citations — patches, advisories, analysis.

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