WordPress Visual CSS Style Editor plugin <= 7.6.1 - Cross Site Scripting (XSS) vulnerability

published 2024-08-29 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-40612

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits: 0; none known

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WaspThemes YellowPencil Visual CSS Style Editor allows Reflected XSS.This issue affects YellowPencil Visual CSS Style Editor: from n/a through 7.6.1.

Patch / fix

fixed in 1

WaspThemes YellowPencil Visual CSS Style Editor 7.6.4

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-08-29)

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

WaspThemes YellowPencil Visual CSS Style Editor
waspthemes yellowpencil_visual_css_style_editor

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/vulnerability/yellow-pencil-visual-theme-customizer/wordpress-visual-css-style-editor-plugin-7-6-1-c
vdb-entry, third-party-advisory

Sources

CVE List CVE-2024-43963
NVD CVE-2024-43963

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary