Is Instant Appointment safe to use?

Laskyr does not give safety verdicts. Instant Appointment is closed on wordpress.org. Closed on 2024-11-05 (reason given: Security Issue). Closed plugins get no updates through WordPress, so new security holes will not be fixed for you. Keep Instant Appointment on the latest version and remove it if you do not use it.

Which versions of Instant Appointment are vulnerable?

Known issues on record (newest first): Arbitrary file upload (1.2 and older); Reflected cross-site scripting (XSS) (1.2 and older); SQL injection (1.2 and older). The full list with sources is on this page.

What should I do if my Instant Appointment is out of date?

Take a backup, then update it from Dashboard > Updates (or run wp plugin update instant-appointment). If you cannot update right away, deactivate it until you can. If you think the site was already attacked, run a free scan at https://laskyr.com/scan.

Plugins · instant-appointment · data as of 2026-11-04

Is Instant Appointment safe? Known vulnerabilities and latest version

Status: Closed 2024-11-05
Known issues on record: 3
Unpatched in latest: 0

What to do

Replace it. A closed plugin gets no updates through WordPress, so any hole found from now on stays open.
Deactivate and delete it once you have a replacement (Plugins → Deactivate → Delete). Deleting removes its files; deactivating alone leaves them on the server.
If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan, or have us clean it: Emergency Cleanup, $499.

With WP-CLI, once you have a replacement: wp plugin deactivate instant-appointment && wp plugin delete instant-appointment

Check your version

Known vulnerabilities

3 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version. 3 record(s) do not state which versions are affected.

critical 9.8 CVE-2026-15282 · published 2026-07-10

Arbitrary file upload in Instant Appointment (1.2 and older)

Affected: 1.2 and older
Fixed in: unknown
Access needed (per CVSS): No login needed
Range from: CVE record (the advisory publisher) · score by Wordfence

Details from the advisory

The Instant Appointment plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'insapp_upload_image_as_attachment' function in all versions up to, and including, 1.2. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

NVD CVE-2026-15282 Wordfence advisory Plugin source

high 7.1 CVE-2025-23672 · published 2025-01-22

Reflected cross-site scripting (XSS) in Instant Appointment (1.2 and older)

Affected: 1.2 and older
Fixed in: unknown
Access needed (per CVSS): No login needed; someone on the site has to click a link or open a page
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in tenteeglobal Instant Appointment instant-appointment allows Reflected XSS.This issue affects Instant Appointment: from n/a through <= 1.2.

NVD CVE-2025-23672 Patchstack advisory

critical 9.3 CVE-2024-54361 · published 2024-12-16

SQL injection in Instant Appointment (1.2 and older)

Affected: 1.2 and older
Fixed in: unknown
Access needed (per CVSS): No login needed
Range from: CVE record (the advisory publisher) · score by Patchstack

Details from the advisory

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in tenteeglobal Instant Appointment instant-appointment allows SQL Injection.This issue affects Instant Appointment: from n/a through <= 1.2.

NVD CVE-2024-54361 Patchstack advisory

Recent activity

2024-11-05 — closed on wordpress.org (Security Issue).
2026-07-10 — Arbitrary file upload disclosed (CVE-2026-15282), fix version not stated.
2025-01-22 — Reflected cross-site scripting (XSS) disclosed (CVE-2025-23672), fix version not stated.
2024-12-16 — SQL injection disclosed (CVE-2024-54361), fix version not stated.

Free. We check the CVE feeds every day and email you only when a new issue for Instant Appointment (instant-appointment) is published or a fix ships. Unsubscribe in one click.

Browse vulnerabilities

Types found in this plugin: Arbitrary file upload (1) · Cross-site scripting (XSS) (1) · SQL injection (1)

Where this data comes from

Version, last update, installs, closure: wordpress.org/plugins/instant-appointment (Plugins API), fetched 2026-11-04.
Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.

Badge for your site or docs (states facts with a date, not a verdict):

<a href="https://laskyr.com/plugins/instant-appointment"><img src="https://laskyr.com/plugins/instant-appointment/badge.svg" alt="Instant Appointment vulnerability status"></a>

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Is Instant Appointment safe? Known vulnerabilities and latest version

Instant Appointment is closed on wordpress.org

What to do

Check your version

Known vulnerabilities

Arbitrary file upload in Instant Appointment (1.2 and older)

Reflected cross-site scripting (XSS) in Instant Appointment (1.2 and older)

SQL injection in Instant Appointment (1.2 and older)

Recent activity

Get an email when Instant Appointment has a new vulnerability

Browse vulnerabilities

Where this data comes from