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-2023-4226

28
FAUCET Score

CVE-2023-4226 is an unrestricted file upload vulnerability in Chamilo LMS versions up to and including 1.11.24, specifically within the /main/inc/ajax/work.ajax.php component. This flaw allows authenticated attackers with a learner role to achieve remote code execution by uploading malicious PHP files. Rated 8.8 HIGH on the CVSS scale, this vulnerability is easily exploitable over the network with low privileges and no user interaction, leading to high impacts on confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is minimal community discussion or media coverage, the vulnerability has a high EPSS score, indicating a significant probability of exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, <= 1.11.24CPE match
cpe:2.3:a:chamilo:chamilo:*:*:*:*:*:*:*:*
<= 1.11.24CPE matchmatch criteria
cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.43%
Probability of exploitation in next 30 days
EPSS Percentile
82.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0243 is in the 81st percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / chamilo/chamilo-lms/commit/6f32625a012d5de2dfe8edbccb4ed14a85e310d4
Patch
github.com / chamilo/chamilo-lms/commit/e864127a440c2cab0eb62c113a04e2e904543a1f
Patch
github.com / chamilo/chamilo-lms/commit/f3d62b65ad60d68096c2674d5695339f04de0b8a
Patch
starlabs.sg / advisories/23/23-4226
ExploitThird Party Advisory
support.chamilo.org / projects/chamilo-18/wiki/security_issues
Issue TrackingVendor Advisory