CVE-2017-15284

October vulnerability

CVSS

5.4

EPSS

4.0%

EPSS pct

90th

Exploited

No known

Cross-Site Scripting exists in OctoberCMS 1.0.425 (aka Build 425), allowing a least privileged user to upload an SVG file containing malicious code as the Avatar for the profile. When this is opened by the Admin, it causes JavaScript execution in the context of the Admin account.

Affected vendor

Octobercms

Affected product

October

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2017-10-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2017-15284

Confirm whether Octobercms October is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-15284.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-15284

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-15284 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2017-15284?

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