CVE-2023-3841 — A vulnerability has been found in NxFilter 4

A vulnerability has been found in NxFilter 4.3.2.5 and classified as problematic. This vulnerability affects unknown code of the file user.jsp. The manipulation leads to cross-site request forgery. The attack can be initiated remotely. The identifier of this vulnerability is VDB-

01What is this vulnerability?

A vulnerability has been found in NxFilter 4.3.2.5 and classified as problematic. This vulnerability affects unknown code of the file user.jsp. The manipulation leads to cross-site request forgery. The attack can be initiated remotely. The identifier of this vulnerability is VDB-235192. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

02Affected products

Vendor	Product	Versions
n	a / NxFilter	4.3.2.5

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-07-23T03:00:04.713Z
• Last modified: 2024-08-02T07:08:50.573Z

09References

• vuldb.com — https://vuldb.com/?id.235192
• vuldb.com — https://vuldb.com/?ctiid.235192