Client side RCE in Google Web Designer App

published 2025-06-12 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-18165

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits: 0; none known

Path traversal in Google Web Designer's template handling versions prior to 16.3.0.0407 on Windows allows attacker to achieve remote code execution by tricking users into downloading a malicious ad template

Patch / fix

fixed in 1

Google Web Designer App 16.3.0.0407

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 16 mo ago (2025-06-14)

Exploit prediction

0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

balintmagyar.com https://balintmagyar.com/articles/google-web-designer-path-traversal-client-side-rce-cve-2025-4613 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/S:N/AU:N/R:U/V:D/RE:L
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:U/V:D/RE:L/U:X
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Google Web Designer App

Classification

Weakness

CWE-20 Improper Input Validation
CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

balintmagyar.com /articles/google-web-designer-path-traversal-client-side-rce-cve-2025-4613
exploit, third-party-advisory

Sources

CVE List CVE-2025-4613
NVD CVE-2025-4613

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