CVE-2021-24801: The WP Survey Plus WordPress plugin through 1.0 does not have any authorisation and CSRF checks in place in it

Q: How do I fix CVE-2021-24801?

wp survey plus: upgrade to newer than 1.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-24801 being exploited?

CVE-2021-24801 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-2021-24801 affect?

CVE-2021-24801 affects wp survey plus. Severity is medium (CVSS 4.3). The WP Survey Plus WordPress plugin through 1.0 does not have any authorisation and CSRF checks in place in its AJAX actions, allowing any user to call them and add/edit/delete Surveys. Furthermore, due to the lack of sanitization in the Su

Q: How urgent is CVE-2021-24801?

Priority 30/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2021-24801 is a medium-severity flaw (CVSS 4.3) affecting wp survey plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WP Survey Plus WordPress plugin through 1.0 does not have any authorisation and CSRF checks in place in its AJAX actions, allowing any user to call them and add/edit/delete Surveys. Furthermore, due to the lack of sanitization in the Surveys' Title, this could also lead to Stored Cross-Site Scripting issues

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-284, CWE-79, CWE-352
Published	2021-11-08
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: wp survey plus project

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

Am I affected?

Timeline

2021-11-08 18:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

wp survey plus project wp survey plus UPGRADE

Affected: <= 1.0

Fixed in: newer than 1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wp-survey-plus || rpm -q wp-survey-plus || wp-survey-plus --version

2. UPGRADE to newer than 1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wp-survey-plus

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wp-survey-plus

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-2021-24801?

wp survey plus: upgrade to newer than 1.0. Exact commands for each OS are on this page.

Is CVE-2021-24801 being exploited?

CVE-2021-24801 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-2021-24801 affect?

CVE-2021-24801 affects wp survey plus. Severity is medium (CVSS 4.3). The WP Survey Plus WordPress plugin through 1.0 does not have any authorisation and CSRF checks in place in its AJAX actions, allowing any user to call them and add/edit/delete Surveys. Furthermore, due to the lack of sanitization in the Su

How urgent is CVE-2021-24801?

Priority 30/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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