WP Survey Plus <= 1.0 - Subscriber+ AJAX Calls

published 2021-11-08 5y ago modified 2026-06-17 4mo ago also EUVD-2021-11713

cvss: 4.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

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

Is CVE-2021-24801 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/78405609-2105-4011-b18e-1ba5f438972d referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

Unknown WP Survey Plus

Classification

Weakness

CWE-284 Improper Access Control
CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-352 Cross-Site Request Forgery

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/78405609-2105-4011-b18e-1ba5f438972d
exploit, third-party-advisory

Sources

CVE List CVE-2021-24801
NVD CVE-2021-24801

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.