CVE-2021-4303

Name: CVE-2021-4303
Creator: NVD / NIST
Published: 2023-01-05T09:15:08.647+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2021-4303 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A vulnerability, which was classified as problematic, has been found in shannah Xataface up to 2.x. Affected by this issue is the function testftp of the file install/install_form.js.php of the component Installer. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as problematic, has been found in shannah Xataface up to 2.x. Affected by this issue is the function testftp of the file install/install_form.js.php of the component Installer. The manipulation leads to cross site scripting. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 3.0.0 is able to address this issue. The patch is identified as 94143a4299e386f33bf582139cd4702571d93bde. It is recommended to upgrade the affected component. VDB-217442 is the identifier assigned to this vulnerability. NOTE: Installer is disabled by default.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.51%

39.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Xataface Project	Xataface	< 3.0.0

References

https://github.com/shannah/xataface/commit/94143a4299e386f33bf582139cd4702571d93bdePatch, Third Party Advisory
https://github.com/shannah/xataface/releases/tag/3.0.0Third Party Advisory
https://vuldb.com/?ctiid.217442Permissions Required, Third Party Advisory
https://vuldb.com/?id.217442Permissions Required, Third Party Advisory
https://github.com/shannah/xataface/commit/94143a4299e386f33bf582139cd4702571d93bdePatch, Third Party Advisory
https://github.com/shannah/xataface/releases/tag/3.0.0Third Party Advisory
https://vuldb.com/?ctiid.217442Permissions Required, Third Party Advisory
https://vuldb.com/?id.217442Permissions Required, Third Party Advisory

Timeline

Published: Jan 5, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-4303?

How severe is CVE-2021-4303?

CVE-2021-4303 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2021-4303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4303?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST