CVE-2023-5035

Cookie Without Secure Flag

MEDIUM
5.3
CVSS Score
Published: November 2, 2023 at 04:11 PM UTC
Updated: June 17, 2026 at 06:47 AM UTC
3 products affected across 1 vendorEds G503 FirmwareEds-G503PT-G503

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.2
Affected range stops below 5.2, so it looks safe — our inference, not a vendor statement
moxa-eds-g503 (same device)
1.0 ≤ v ≤ 5.21.0
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-614CWE-319

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