CVE-2021-24763

Name: CVE-2021-24763
Creator: NVD / NIST
Published: 2022-02-01T13:15:08.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.64%

Last modified Jun 17, 2026

CVE-2021-24763 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The Perfect Survey WordPress plugin before 1.5.2 does not have proper authorisation nor CSRF checks in the save_global_setting AJAX action, allowing unauthenticated users to edit surveys and modify settings. Given the lack of sanitisation and escaping in the settings, this could also lead to a Stored Cross-Site Scripting issue which will be executed in the context of a user viewing any survey. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

Description

The Perfect Survey WordPress plugin before 1.5.2 does not have proper authorisation nor CSRF checks in the save_global_setting AJAX action, allowing unauthenticated users to edit surveys and modify settings. Given the lack of sanitisation and escaping in the settings, this could also lead to a Stored Cross-Site Scripting issue which will be executed in the context of a user viewing any survey

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.64%

46.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-352

Affected Software

Vendor	Product	Versions
Getperfectsurvey	Perfect Survey	< 1.5.2

References

https://wpscan.com/vulnerability/c73c7694-1cee-4f26-a425-9c336adce52bExploit, Third Party Advisory
https://wpscan.com/vulnerability/c73c7694-1cee-4f26-a425-9c336adce52bExploit, Third Party Advisory

Timeline

Published: Feb 1, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24763?

How severe is CVE-2021-24763?

CVE-2021-24763 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24763?

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-2021-24763?

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

Scan your code now

Source: NVD / NIST