CVE-2021-24763: The Perfect Survey WordPress plugin before 1.5.2 does not have proper authorisation nor CSRF checks in the sav

Q: How do I fix CVE-2021-24763?

perfect survey: upgrade to 1.5.2. Exact commands for each OS are on this page.

Q: Is CVE-2021-24763 being exploited?

CVE-2021-24763 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-24763 affect?

CVE-2021-24763 affects perfect survey. Severity is high (CVSS 8.8). 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 a

Q: How urgent is CVE-2021-24763?

Priority 49/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2021-24763 is a high-severity flaw (CVSS 8.8) affecting perfect survey. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-352
Published	2022-02-01
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: getperfectsurvey

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

Am I affected?

Timeline

2022-02-01 13:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

getperfectsurvey perfect survey UPGRADE

Affected: < 1.5.2

Fixed in: 1.5.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy perfect-survey || rpm -q perfect-survey || perfect-survey --version

2. UPGRADE to 1.5.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade perfect-survey

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade perfect-survey

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2021-24763?

perfect survey: upgrade to 1.5.2. Exact commands for each OS are on this page.

Is CVE-2021-24763 being exploited?

CVE-2021-24763 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-2021-24763 affect?

CVE-2021-24763 affects perfect survey. Severity is high (CVSS 8.8). 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 a

How urgent is CVE-2021-24763?

Priority 49/100. High severity; Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2021-24765 MEDIUM 6.1 UPGRADE The Perfect Survey WordPress plugin through 1.5.2 does not validate and escape the X-Forwarded-For header valu
CVE-2021-24764 MEDIUM 6.1 UPGRADE The Perfect Survey WordPress plugin before 1.5.2 does not sanitise and escape multiple parameters (id and filt
CVE-2021-24762 CRITICAL 9.8 UPGRADE The Perfect Survey WordPress plugin before 1.5.2 does not validate and escape the question_id GET parameter be

References

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