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CVE-2023-34944

32
FAUCET Score

CVE-2023-34944 is a critical arbitrary file upload vulnerability affecting Chamilo LMS versions 1.11.* up to 1.11.18. This flaw allows unauthenticated attackers to upload crafted SVG files via the /fileUpload.lib.php component, leading to arbitrary code execution on the server. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.11.0, <= 1.11.18CPE matchmatch criteria
cpe:2.3:a:chamilo:chamilo_lms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.07%
Probability of exploitation in next 30 days
EPSS Percentile
61.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0107 is in the 46th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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/0d0c88c4806280ac9b70a299d6e3099269c9bc54
Patch
github.com / chamilo/chamilo-lms/commit/f6e83550c2d17fc93a65ec4be602a78312289f37
Patch
support.chamilo.org / projects/chamilo-18/wiki/Security_issues
Vendor Advisory