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CVE-2023-52263

18
FAUCET Score

CVE-2023-52263 describes a medium-severity vulnerability in Brave Browser versions prior to 1.59.40, where improper restriction of WebUI factory and redirect schemas could lead to security issues. An attacker could exploit this via a network-based attack requiring user interaction, potentially resulting in low impact to confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.59.40CPE matchmatch criteria
cpe:2.3:a:brave:browser:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 39th percentile among its peer group of 26,209 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / brave/brave-browser/issues/32449
Issue TrackingPatch
github.com / brave/brave-browser/issues/32473
Issue TrackingPatch
github.com / brave/brave-core/pull/19820
Issue TrackingPatch
github.com / brave/brave-core/pull/19820/commits/9da202f7f4bc80b6975909b684bbc0764a31c4e9
Patch