WordPress Newsletters plugin <= 4.18 - SQL Injection vulnerability

published 2026-09-17 53 d ago modified 2026-09-19 51 d ago also EUVD-2026-81505

cvss: 7.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits: 0; none known

Administrator SQL Injection in Newsletters <= 4.18 versions.

Patch / fix

fixed in 1

Tribulant Software Newsletters 4.18.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 51 d ago (2026-09-19)

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.6	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L

Affected products

Tribulant Software Newsletters

Classification

Weakness

CWE-89 Improper Neutralization of Special Elements used in an SQL Command

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/newsletters-lite/vulnerability/wordpress-newsletters-plugin-4-18-sql-injection-vuln
vdb-entry

Sources

CVE List CVE-2026-66619
NVD CVE-2026-66619

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary