CVE-2018-4876

Experience Manager vulnerability

CVSS

6.1

EPSS

3.9%

EPSS pct

89th

Exploited

No known

Adobe Experience Manager versions 6.3, 6.2, and 6.1 are vulnerable to cross-site scripting via a bypass of the Sling XSSAPI#getValidHref function.

Affected vendor

Adobe

Affected product

Experience Manager

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2018-02-27

Risk analysis

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

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2018-4876

Confirm whether Adobe Experience Manager is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-4876.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-4876

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-4876 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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