CVE-2023-48003

6.1 MEDIUM 0.5% exploit odds No fix listed

What it is

An open redirect through HTML injection in user messages in Asp.Net Zero before 12.3.0 allows remote attackers to redirect targeted victims to any URL via the '<meta http-equiv="refresh"' in the WebSocket messages.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
Exploit odds: 0.5% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2023-12-26 22:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 06:33 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.5% in the next 30 days (EPSS).
Severity: 6.1 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2023-12-26 22:15 UTC
Last modified: 2026-06-17 06:33 UTC
Exploit probability: 0.5% · EPSS, next 30 days
Weakness: CWE-601
Record status: Modified

Affected

Aspnetzero asp.net Zero < 12.3.0

Attack profile CVSS 3.1 · 6.1

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-48003.md and follow it. Check whether this project is affected by CVE-2023-48003. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record