WordPress Widget Options plugin <= 4.2.3 - Remote Code Execution (RCE) vulnerability

published 2026-06-25 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-39365

cvss: 9.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

Contributor Remote Code Execution (RCE) in Widget Options <= 4.2.3 versions.

Patch / fix

fixed in 1

MarketingFire Widget Options 4.2.4

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 4 mo ago (2026-06-25)

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

MarketingFire Widget Options

Classification

Weakness

CWE-94 Improper Control of Generation of Code

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/widget-options/vulnerability/wordpress-widget-options-plugin-4-2-3-remote-code-exec
vdb-entry

Sources

CVE List CVE-2026-54823
NVD CVE-2026-54823

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