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CVE-2023-42783

23
FAUCET Score

CVE-2023-42783 is a high-severity relative path traversal vulnerability affecting Fortinet FortiWLM versions 8.6.0 through 8.6.5, 8.5.0 through 8.5.4, 8.4.0 through 8.4.2, and 8.3.0 through 8.3.2. This flaw allows an unauthenticated attacker to read arbitrary files on the system by sending specially crafted HTTP requests. With a CVSS score of 7.5, the vulnerability has a low attack complexity and requires no user interaction, making it easily exploitable over the network for sensitive information disclosure. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.3.0, <= 8.3.2CPE match
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*
>= 8.4.0, <= 8.4.2CPE match
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*
>= 8.5.0, <= 8.5.4CPE match
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*
>= 8.6.0, <= 8.6.6CPE match
cpe:2.3:a:fortinet:fortiwlm:*:*:*:*:*:*:*:*
8.2.2CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiwlm:8.2.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.90%
Probability of exploitation in next 30 days
EPSS Percentile
55.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0090 is in the 31st percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Vendor Patches (1)

fortinetvendor investigatingvia nvd_reference
View patch

References

fortiguard.com / psirt/FG-IR-23-143
Vendor Advisory