CVE-2023-2521: A vulnerability was found in NEXTU NEXT-7004N 3.0.1

Routine

LOW 3.5MITIGATE

CVE-2023-2521 is a low-severity flaw (CVSS 3.5) affecting next-7004n firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in NEXTU NEXT-7004N 3.0.1. It has been classified as problematic. Affected is an unknown function of the file /boafrm/formFilter of the component POST Request Handler. The manipulation of the argument url with the input <svg onload=alert(1337)> leads to cross site scripting. It is possible to launch the attack remotely. The identifier of this vulnerability is VDB-228012. NOTE: The vendor was contacted early about this di

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-05-04
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: ez-net

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-05-04 17:15 UTCPublished CVE record published
2026-06-17 05:52 UTCUpdated Record last modified

ez-net next-7004n firmware MITIGATE

Affected: 3.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.1

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-2521?

next-7004n firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-2521 being exploited?

CVE-2023-2521 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-2521 affect?

CVE-2023-2521 affects next-7004n firmware. Severity is low (CVSS 3.5). A vulnerability was found in NEXTU NEXT-7004N 3.0.1. It has been classified as problematic. Affected is an unknown function of the file /boafrm/formFilter of the component POST Request Handler. The manipulation of the argument url with the

How urgent is CVE-2023-2521?

Priority 19/100. No elevated risk signals yet.

References

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