WordPress Newsletters plugin <= 4.18.2 - Cross Site Request Forgery (CSRF) vulnerability

published 2026-10-27 13d ago modified 2026-10-29 11d ago also EUVD-2026-111144

cvss: 9.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits: 0; none known

Cross-Site Request Forgery (CSRF) vulnerability in Tribulant Software Newsletters newsletters-lite allows Cross Site Request Forgery.This issue affects Newsletters: from n/a through 4.18.2.

Is CVE-2026-116863 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 11d ago (2026-10-29)

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

Tribulant Software Newsletters

Classification

Weakness

CWE-352 Cross-Site Request Forgery

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/newsletters-lite/vulnerability/wordpress-newsletters-plugin-4-18-2-cross-site-reque
vdb-entry

Sources

CVE List CVE-2026-116863
NVD CVE-2026-116863

Fencer Intel 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.