Vulnerability · Published Aug 7, 2025 · Assigned by Chrome
CVE-2025-8581
Medium 4.3
In plain English
A medium-severity cross-site scripting in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 78.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Inappropriate implementation in Extensions in Google Chrome prior to 139.0.7258.66 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 139.0.7258.66-1~deb12u1 | DEBIAN-CVE-2025-8581 |
| Debian:12 | chromium | 139.0.7258.66-1~deb12u1 | DSA-5971-1 |
| Debian:13 | chromium | 139.0.7258.127-1~deb13u1 | DEBIAN-CVE-2025-8581 |
| Debian:14 | chromium | 139.0.7258.66-1 | DEBIAN-CVE-2025-8581 |
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N