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CVE Record

CVE-2017-2285: Cross-site scripting vulnerability in Simple Custom CSS and JS prior to version 3.4 allows remote attackers...

Cross-site scripting vulnerability in Simple Custom CSS and JS prior to version 3.4 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

MediumCVSS 6.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2017-2285 is a cross-site scripting issue in the WordPress plugin Simple Custom CSS and JS before version 3.4. An attacker could inject script or HTML through unspecified vectors, potentially affecting users who interact with the malicious content. The available sources do not show active exploitation.

Executive priority

Treat this as a moderate-priority cleanup item for WordPress estates. It is not marked as actively exploited in the provided sources, but outdated plugins on public sites can create reputational and user-trust risk.

Technical view

The issue is CWE-79 XSS with CVSS 3.1 score 6.1: network reachable, low complexity, no privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact. The affected product is SilkyPress Simple Custom CSS and JS prior to 3.4.

Likely exposure

Exposure is limited to WordPress sites running Simple Custom CSS and JS versions earlier than 3.4. Internet-facing WordPress sites are the primary concern, especially where plugin versions are old or unmanaged.

Exploitation context

The source bundle says remote attackers may inject arbitrary web script or HTML via unspecified vectors. It does not provide exploit details, affected pages, or proof of active exploitation. The CVE is not listed as KEV in the supplied data.

Researcher notes

Evidence is sparse: the vector is unspecified, and the bundle does not include exploit mechanics. Focus validation on version evidence and plugin presence rather than attempting reproduction. The WordPress changelog and Trac changeset are relevant for fix confirmation.

Mitigation direction

  • Upgrade Simple Custom CSS and JS to version 3.4 or later.
  • Remove the plugin if it is unused or cannot be updated.
  • Check vendor and WordPress plugin guidance for current supported versions.
  • Prioritize sites with public access or administrative exposure.

Validation and detection

  • Inventory WordPress sites for Simple Custom CSS and JS installations.
  • Confirm installed plugin versions are 3.4 or later.
  • Review vulnerability management records for CVE-2017-2285 closure.
  • Check web application scans for XSS findings tied to this plugin.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-2285 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2017-2285Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SilkyPressSimple Custom CSS and JSprior to version 3.4Listed
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.