CVE-2026-1944CallbackKiller service widget <= 1.2 - Missing Authorization to Unauthenticated Arbitrary Plugin Settings Update
Updated under an hour ago ()
Does this affect you?
It affects krellbat CallbackKiller service widget. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
The CallbackKiller service widget plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the cbk_save() function in all versions up to, and including, 1.2. This makes it possible for unauthenticated attackers to modify the plugin's site ID settings via the 'cbk_save_v1' AJAX action.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Apr 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
krellbat CallbackKiller service widget krellbat:callbackkiller_service_widget (from the name) | through 1.2 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/98a7572d-9642-4150-8112-c0fa2b25ae05?source=cve
- https://plugins.trac.wordpress.org/browser/callbackkiller-service-widget/trunk/callbackkiller-widget.php#L34
- https://plugins.trac.wordpress.org/browser/callbackkiller-service-widget/tags/1.2/callbackkiller-widget.php#L34
- https://plugins.trac.wordpress.org/browser/callbackkiller-service-widget/trunk/callbackkiller-widget.php#L133
- https://plugins.trac.wordpress.org/browser/callbackkiller-service-widget/tags/1.2/callbackkiller-widget.php#L133
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.