Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-23922

19
FAUCET Score

CVE-2023-23922 is a medium-severity cross-site scripting (XSS) vulnerability affecting Moodle, stemming from insufficient sanitization of user-supplied data in blog search. An attacker can exploit this by tricking a victim into clicking a specially crafted link, leading to the execution of arbitrary HTML and script code in the user's browser. The vulnerability has a CVSS score of 6.1, indicating a network-based attack with low complexity, requiring user interaction, and resulting in low impact to confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, < 4.0.6CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:moodle:moodle:4.1.0:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.85%
Probability of exploitation in next 30 days
EPSS Percentile
54.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0085 is in the 64th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 4.0.6
composerpatch availablevia ghsa
Product: moodle/moodleFixed in: 4.1.1

Vendor Advisories (1)

composerGHSA-grmj-gpwm-98wwmedium

Moodle Cross-site Scripting vulnerability

Feb 17, 2023

References

git.moodle.org / gw
Patch
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
moodle.org / mod/forum/discuss.php
Vendor Advisory