WordPress UiCore Elements plugin <= 1.3.17 - Cross Site Scripting (XSS) vulnerability

published 2026-04-08 7 mo ago modified 2026-09-25 45 d ago also EUVD-2026-20415

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits: 0; none known

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UiCore UiCore Elements uicore-elements allows Stored XSS.This issue affects UiCore Elements: from n/a through 1.3.17.

Patch / fix

fixed in 1

UiCore UiCore Elements 1.3.18

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-04-08)

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CISA ADP	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Affected products

UiCore UiCore Elements

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/uicore-elements/vulnerability/wordpress-uicore-elements-plugin-1-3-14-cross-site-sc
vdb-entry

Sources

CVE List CVE-2026-39708
NVD CVE-2026-39708

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