CVE-2026-16268Newsletters < 4.16 - Unauthenticated Server-Side Request Forgery via SNS Bounce Handler
Updated under an hour ago ()
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It affects Unknown Newsletters. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The Newsletters WordPress plugin before 4.16 does not authenticate or validate a bounce-processing request before fetching a user-supplied URL on the server side, allowing unauthenticated attackers to make the site issue requests to arbitrary internal or external hosts.
- CVSS
- 8.2 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Aug 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown Newsletters unknown:newsletters (from the name) | before 4.16 | CNA record |
References
- https://wpscan.com/vulnerability/65612dd4-83d8-40c5-8e12-862e9b5f940b/exploit, vdb-entry, technical-description
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.