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CVE-2018-1999019

30
FAUCET Score

CVE-2018-1999019 describes an unauthenticated remote code execution vulnerability in Chamilo LMS version 11.x, specifically within the "hash" GET parameter of the /webservices/api/v2.php API endpoint. This critical vulnerability, rated 9.8 CVSS, allows an attacker to execute arbitrary code with a simple GET request, leading to complete compromise of confidentiality, integrity, and availability. While a fix has been committed, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.11.0CPE matchmatch criteria
cpe:2.3:a:chamilo:chamilo_lms:1.11.0:-:*:*:*:*:*:*
1.11.0CPE matchmatch criteria
cpe:2.3:a:chamilo:chamilo_lms:1.11.0:alpha2:*:*:*:*:*:*
1.11.0CPE matchmatch criteria
cpe:2.3:a:chamilo:chamilo_lms:1.11.0:beta1:*:*:*:*:*:*
1.11.0CPE matchmatch criteria
cpe:2.3:a:chamilo:chamilo_lms:1.11.0:beta2:*:*:*:*:*:*
1.11.0CPE matchmatch criteria
cpe:2.3:a:chamilo:chamilo_lms:1.11.0:beta3:*:*:*:*:*:*

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
3.41%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0341 is in the 80th percentile among its peer group of 36,897 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/0de84700648f098c1fbf6b807dee28ec640efe62
PatchThird Party Advisory
ibb.co / jBxe6y
Mailing ListThird Party Advisory