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CVE-2023-5035

17
FAUCET Score

CVE-2023-5035 is a medium-severity vulnerability affecting Moxa PT-G503 Series firmware versions prior to v5.2. It stems from sensitive cookies lacking the "Secure" attribute in HTTPS sessions, potentially leading to their transmission in plaintext over HTTP. This flaw could expose user session data to unauthorized access and manipulation, with a CVSS score of 5.3. Currently, there is no evidence of active exploitation, and public exploit code (Metasploit, Nuclei, ExploitDB) is unavailable. Community discussion and media coverage are minimal, indicating low current attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.2CPE matchmatch criteria
cpe:2.3:o:moxa:eds-g503_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.1LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 3rd percentile among its peer group of 23,725 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

moxa.com / en/support/product-support/security-advisory/mpsa-230203-pt-g503-series-multiple-vulnerabilities
Vendor Advisory