TI-2023-09720 Aliases CVE-2023-23922 GHSA-grmj-gpwm-98ww

Moodle: reflected xss risk in blog search

LOW 29CWE-79Published 2023-02-17 · Updated 2024-08-02

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in blog search. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website. This flaw allows a remote attacker to perform cross-site scripting (XSS) attacks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00854 58th percentileScored 2026-11-07

Fix Fixed moodle: 4.1.1, 4.0.6moodle/moodle (Packagist): 4.0.6, 4.1.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	moodle	4.1.0 to before 4.1.1; 4.0.0 to before 4.0.6	4.1.1, 4.0.6	Patch available	CNA
—	moodle/moodle (Packagist)	4.0.0-beta to before 4.0.6	4.0.6	Patch available	GHSA-grmj-gpwm-98ww
—	moodle/moodle (Packagist)	4.1.0-beta to before 4.1.1	4.1.1	Patch available	GHSA-grmj-gpwm-98ww

moodle Vendor— Affected 4.1.0 to before 4.1.1; 4.0.0 to before 4.0.6 Fixed in 4.1.1, 4.0.6 Patch available CNA
moodle/moodle (Packagist) Vendor— Affected 4.0.0-beta to before 4.0.6 Fixed in 4.0.6 Patch available GHSA-grmj-gpwm-98ww
moodle/moodle (Packagist) Vendor— Affected 4.1.0-beta to before 4.1.1 Fixed in 4.1.1 Patch available GHSA-grmj-gpwm-98ww

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:moodle:moodle::::::::	4.0.0 to before 4.0.6	Vulnerable	Moodle
cpe:2.3:a:moodle:moodle:4.1.0:-::::::	4.1.0	Vulnerable	Moodle

cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.0.6 Vulnerable ·Moodle
cpe:2.3:a:moodle:moodle:4.1.0:-:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·Moodle

Remediation

Fix · CNA moodle Fixed in 4.1.1, 4.0.6
Fix · GHSA-grmj-gpwm-98ww moodle/moodle (Packagist) Fixed in 4.0.6 Advisory →
Fix · GHSA-grmj-gpwm-98ww moodle/moodle (Packagist) Fixed in 4.1.1 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2023-23922
2026-10-03 Alias added: GHSA-grmj-gpwm-98ww

References

Patch 1

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-76861

Advisory 3

Other 1

https://github.com/moodle/moodle

TI-2024-22468 moodle: unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.php CVSS 3.1CRITICAL 9.8
TI-2021-14741 In Moodle, an SQL injection risk was identified in the library fetching a user's recent courses. CVSS 3.1CRITICAL 9.8
TI-2024-29071 Moodle: remote code execution via calculated question types CVSS 3.1HIGH 8.1
TI-2016-06653 Moodle 3.1.2 allows remote attackers to obtain sensitive information via unspecified… CVSS 3.1HIGH 7.5
TI-2022-00259 SQL injection in moodle CVSS 3.1CRITICAL 9.8
TI-2022-16116 Path traversal in Moodle CVSS 3.1HIGH 7.5

See all 636 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences