Improper input validation in Google Chrome
CVE-2025-3070
Insufficient validation of untrusted input in Extensions in Google Chrome prior to 135.0.7049.52 allowed a remote attacker to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Google Chrome — versions 135.0.7049.52
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop.html (Release Notes)
- issues.chromium.org/issues/40086360 (Permissions Required, Issue Tracking)
Frequently asked questions
- What is CVE-2025-3070?
- CVE-2025-3070 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2025-04-02.
- How severe is CVE-2025-3070?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-3070 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.