WordPress WP-LESS plugin <= 1.9.6 - Sensitive Data Exposure vulnerability

published 2025-04-01 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-9447

cvss: 5.8; 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 36%
public exploits: 0; none known

Insertion of Sensitive Information into Externally-Accessible File or Directory vulnerability in thom4 WP-LESS wp-less allows Retrieve Embedded Sensitive Data.This issue affects WP-LESS: from n/a through <= 1.9.6.

Patch / fix

fixed in 1

thom4 WP-LESS 1.9.7

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 19 mo ago (2025-04-02)

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Affected products

thom4 WP-LESS

Classification

Weakness

CWE-538 Insertion of Sensitive Information into Externally-Accessible File or Directory

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Plugin/wp-less/vulnerability/wordpress-wp-less-plugin-1-9-3-3-sensitive-data-exposure-vuln
vdb-entry

Sources

CVE List CVE-2025-31550
NVD CVE-2025-31550

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