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CVE-2018-1000649

28
FAUCET Score

CVE-2018-1000649 describes an authenticated unrestricted file write vulnerability in LibreHealthIO lh-ehr version REL-2.0.0, specifically within the patient file letter functions of letter.php (2). This flaw allows an authenticated attacker to write arbitrary files with malicious content, potentially leading to remote code execution. With a CVSS score of 8.8 (High), the vulnerability is easily exploitable over the network with low attack complexity and requires only low privileges, impacting confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) or active exploitation (KEV) has been identified, and community discussion and media coverage are minimal, the FAUCET Risk Score of 73/100 indicates a significant potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:librehealth:librehealth_ehr:2.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
2.80%
Probability of exploitation in next 30 days
EPSS Percentile
85.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0280 is in the 84th percentile among its peer group of 17,844 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

Remediation records are not available for this CVE.

References

0dd.zone / 2018/08/07/lh-ehr-Authenticated-File-Write-Letter-PHP-2
ExploitThird Party Advisory
github.com / LibreHealthIO/lh-ehr/issues/1214
ExploitThird Party Advisory