Is Scheduler Widget safe to use?

Laskyr does not give safety verdicts. Scheduler Widget is closed on wordpress.org. Closed on 2026-02-12 (reason given: Security Issue). Closed plugins get no updates through WordPress, so new security holes will not be fixed for you. Keep Scheduler Widget on the latest version and remove it if you do not use it.

Which versions of Scheduler Widget are vulnerable?

Known issues on record (newest first): Missing authorization check (0.1.6 and older). The full list with sources is on this page.

What should I do if my Scheduler Widget is out of date?

Take a backup, then update it from Dashboard > Updates (or run wp plugin update scheduler-widget). 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 · scheduler-widget · data as of 2026-11-04

Is Scheduler Widget safe? Known vulnerabilities and latest version

Status: Closed 2026-02-12
Known issues on record: 1
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 scheduler-widget && wp plugin delete scheduler-widget

Check your version

Known vulnerabilities

1 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. 1 record(s) do not state which versions are affected.

medium 5.4 CVE-2026-1987 · published 2026-02-14

Missing authorization check in Scheduler Widget (0.1.6 and older)

Affected: 0.1.6 and older
Fixed in: unknown
Access needed (per CVSS): Needs a low-level account (e.g. subscriber)
Range from: CVE record (the advisory publisher) · score by Wordfence

Details from the advisory

The Scheduler Widget plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 0.1.6. This is due to the `scheduler_widget_ajax_save_event()` function lacking proper authorization checks and ownership verification when updating events. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify any event in the scheduler via the `id` parameter granted they have knowledge of the event ID.

NVD CVE-2026-1987 Wordfence advisory cwe.mitre.org cwe.mitre.org owasp.org Plugin source

Recent activity

2026-02-12 — closed on wordpress.org (Security Issue).
2026-02-14 — Missing authorization check disclosed (CVE-2026-1987), fix version not stated.

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Browse vulnerabilities

Types found in this plugin: Missing authorization (1)

Where this data comes from

Version, last update, installs, closure: wordpress.org/plugins/scheduler-widget (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/scheduler-widget"><img src="https://laskyr.com/plugins/scheduler-widget/badge.svg" alt="Scheduler Widget vulnerability status"></a>

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