CVE-2017-18016

Browser vulnerability

CVSS

5.3

EPSS

5.5%

EPSS pct

92th

Exploited

No known

Parity Browser 1.6.10 and earlier allows remote attackers to bypass the Same Origin Policy and obtain sensitive information by requesting other websites via the Parity web proxy engine (reusing the current website's token, which is not bound to an origin).

Affected vendor

Parity

Affected product

Browser

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness type (CWE)

CWE-346 — Origin Validation Error

Published

2018-01-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to confidentiality.

Its EPSS score of 5.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2017-18016

Confirm whether Parity Browser is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-18016.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-18016

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-18016 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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