TI-2023-04637 Aliases CVE-2023-5035 GHSA-7v85-4vq6-66gq

Cookie Without Secure Flag

LOW 24CWE-614Published 2023-11-02 · Updated 2024-09-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-319.

Summary

A vulnerability has been identified in PT-G503 Series firmware versions prior to v5.2, where the Secure attribute for sensitive cookies in HTTPS sessions is not set, which could cause the cookie to be transmitted in plaintext over an HTTP session. The vulnerability may lead to security risks, potentially exposing user session data to unauthorized access and manipulation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00245 15th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Moxa	PT-G503 Series	1.0 – 5.2	—	No fix listed	CNA

PT-G503 Series VendorMoxa Affected 1.0 – 5.2 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:moxa:eds-g503_firmware::::::::	before 5.2	Vulnerable	Moxa
cpe:2.3:h:moxa:eds-g503:-:::::::*	not specified by NVD	Running on	Moxa

cpe:2.3:o:moxa:eds-g503_firmware:*:*:*:*:*:*:*:* Versions before 5.2 Vulnerable ·Moxa
cpe:2.3:h:moxa:eds-g503:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Moxa

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2023-11-02
Moxa PT-G503 Series — moxa.com/en/support/product-support/security-advisory/mpsa-…
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2023-03904 Session cookies attribute not set properlyPriority LOW 24
Show all 2 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2023-5035
2026-10-03 Alias added: GHSA-7v85-4vq6-66gq

References

Advisory 1

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230203-pt-g503-series-multiple-vulnerabilities

TI-2023-03904 Session cookies attribute not set properly CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences