by Syed Shahzaib Hassan 1 (0 reviews)

Nonce Failure Explainer — Diagnose "Are You Sure You Want To Do This?"

Name: Nonce Failure Explainer — Diagnose "Are You Sure You Want To Do This?"
Author: Syed Shahzaib Hassan

Explains "Are you sure you want to do this?" and "Security check failed" errors: finds the failed nonce check and names the likely cause.

Nonce Failure Explainer ranks #72,839 among WordPress.org plugins with 1+ active installations, is #2,854 of 5,058 in the Security category, a 1/5 rating from 0 reviews, and was last updated Aug 21, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v1.2.0 Current Version v1.2.0

Updated 2 months ago Last Update on 21 Aug, 2026

Refreshed 1 week ago Last Refreshed on

#2,854 of 5,058 in Security

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Rank

#72,839

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Active Installs

-66.7%

KW Avg Position

N/A

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Downloads

263

+1 today

Support Resolved

— No change

Rating

20%

Review 1 out of 5

1 (0 reviews)

Next Milestone 10

Total Progress 10%

0+ 10+

59,902

Ranks to Climb

Growth Needed

8,000,000

Active Installs

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Rank Changes

Current #72,839

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Active Installs 0,000,000+

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Reviews & Ratings

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Overall 20%

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Plugin Details

Version: 1.2.0
Last Updated: Aug 21, 2026
Requires WP: 5.6+
Tested Up To: 7.1
PHP Version: 7.4 or higher
Author: Syed Shahzaib Hassan

Support & Rating

Rating: ★ ☆ ☆ ☆ ☆ 1
Reviews: 0
Support Threads: 0
Resolved: 0%

Keywords

ajax debugging nonce security check failed troubleshooting

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Frequently Asked Questions

Common questions about Nonce Failure Explainer — Diagnose "Are You Sure You Want To Do This?"

Because a nonce check failed. WordPress puts a one-time token into admin forms and links to prove a request came from your own page, rather than being forged by another site while you are logged in. When that token is missing, expired, or does not match, WordPress blocks the request and shows that message — without saying which of those it was. This plugin records the failure and tells you which.

A "number used once": a short-lived token WordPress adds to forms and action links to protect against cross-site request forgery. Nonces expire after 24 hours by default, which is why a page left open overnight often fails on submit.

No, and deliberately so. It is a diagnostic tool. Automatically extending nonce lifetimes or bypassing checks would weaken the protection nonces exist to provide. It tells you where the fault is; fixing it stays a decision you make.

That is the expected result on a healthy site, and since version 1.2.0 it is considerably more likely. The plugin now records only checks that actually blocked a request. Reproduce the failing request and it will be captured.

The recorder only does work when a check actually fails. There is no cost on successful requests, and events are written once per request rather than once per event.

Because WordPress does not distinguish an expired nonce from one generated for a different action — both simply fail to match. Where the cause can be established as fact, the plugin says "Confirmed". Where it is inference, it says so.

Yes. It is read-only, stores no secrets, and caps its own storage. The clearing action is capability-checked and nonce-protected.

Yes. The log is per-site, and uninstalling clears it across every site in the network.

Yes. Add the action string to the noncfaex_muted_actions filter and it is ignored entirely.