What is CVE-2021-24705?

CVE-2021-24705 is a medium-severity vulnerability in Basixonline Nex-Forms, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 4.8/10. Published 2021-12-13.

How severe is CVE-2021-24705?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2021-24705 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Basixonline Nex-Forms

CVE-2021-24705

The NEX-Forms WordPress plugin before 8.4.3 does not have CSRF checks in place when editing a form, and does not escape some of its settings as well as form fields before outputting them in attributes. This could allow attackers to make a logged in admin edit arbitrary forms with Cross-Site Scripting payloads in them

Published 2021-12-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Basixonline Nex-Forms
Nex-Forms — versions 0

Public proof-of-concept exploits

References

wpscan.com/vulnerability/eca883d8-9499-4dbd-8fe1-4447fc2ca28a (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2021-24705?: CVE-2021-24705 is a medium-severity vulnerability in Basixonline Nex-Forms, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 4.8/10. Published 2021-12-13.
How severe is CVE-2021-24705?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2021-24705 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.