CVE-2017-9802

Sling Servlets Post vulnerability

CVSS

6.1

EPSS

3.7%

EPSS pct

88th

Exploited

No known

The Javascript method Sling.evalString() in Apache Sling Servlets Post before 2.3.22 uses the javascript 'eval' function to parse input strings, which allows for XSS attacks by passing specially crafted input strings.

Affected vendor

Apache

Affected product

Sling Servlets Post

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

2017-08-14

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 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2017-9802

Confirm whether Apache Sling Servlets Post is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-9802.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-9802

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-9802 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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