Insufficient validation of untrusted input in Mobile in Google Chrome on Android prior to 148.0...

Description

Insufficient validation of untrusted input in Mobile in Google Chrome on Android prior to 148.0.7778.96 allowed a local attacker to inject arbitrary scripts or HTML (UXSS) via a crafted Chrome Extension. (Chromium security severity: Medium)

Basic information

Type
unreviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Source code
Not specified
Published (advisory)
2026-05-06 21:31:39 UTC
Updated
2026-05-07 01:06:56 UTC
NVD published
2026-05-06

EPSS Score

Score Percentile
0.01% 0.80%

CVSS Scores

Base score Version Severity Vector
4.4 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

CWEs

CWE id Name
CWE-20 Improper Input Validation

References

cvelogic Threat Intelligence