Vulnerability report

Trusted Third Party Report High Confidence Not in CISA KEV

CVE-2019-11370

pCOWeb Cross-Site Scripting

Carel / pCOWeb

Watch CVE-2019-11370 Browse KEV feed
Severity
CVSS 5.4 · Medium
Confidence
High
Exploit status
Trusted Third Party Report
EPSS
4.9%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2019-11370 is a vulnerability affecting Carel pCOWeb. Stored XSS was discovered in Carel pCOWeb prior to B1.2.4, as demonstrated by the config/pw_snmp.html "System contact" field.

Have exploitation attempts been observed?

Yes. Exploitation attempts have been reported for this vulnerability. Previdian lists it as a known exploited vulnerability. Also reported by third-party sources. Confidence is high.

Who is affected?

Carel / pCOWeb.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

pCOWeb Cross-Site Scripting

Stored XSS was discovered in Carel pCOWeb prior to B1.2.4, as demonstrated by the config/pw_snmp.html "System contact" field.

Published
03 Jun 2019
Exploitation Attempts Reported
03 Jun 2019
Attack vector
Remote
Complexity
Low
Privileges
Low
User interaction
Required

Tags

nuclei_scanner

CVE References

  • CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2019-11370
  • drive.google.com/open drive.google.com · CVE Record https://drive.google.com/open?id=1WkmtsCVNCtxwWH2fe9DtHow_Nedp1a7j
  • GitHub — nepenthe0320/cve_poc github.com · CVE Record https://github.com/nepenthe0320/cve_poc/blob/master/CVE-2019-11370

Exploitation evidence

Evidence of exploitation attempts

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploitation Attempts Observed in the Wild

The Shadowserver

Recorded 03 Jun 2019

A trusted third party reported exploitation attempts.

Proof of concept available

Nuclei Templates

Recorded 12 Jun 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
The Shadowserver First 2019-06-03 19:44 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-11370.yaml 25 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.0

5.4 Medium

Potential damage if exploited. Separate from whether attackers are using it.

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

EPSS

4.9%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-79

All CVSS Scores

CVSS v3.0 5.4 Medium

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

CVSS v2.0 3.5 Low

AV:N/AC:M/Au:S/C:N/I:P/A:N

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Carel pCOWeb <B1.2.4 - Cross-Site Scripting

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation attempts

  1. 14:20 UTC

    Public PoC available

    Public proof-of-concept code published

  2. 00:00 UTC

    Nuclei template available

    Scanner coverage available

  3. 19:44 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party report of exploitation attempts

  4. 19:44 UTC

    CVE published

    Vulnerability disclosed publicly

  5. 00:00 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2019-11370

Sample API response 
{
  "cve_id": "CVE-2019-11370",
  "confidence": "High",
  "cvss_score": 5.4,
  "cvss_estimated": false,
  "epss_score": 0.04935,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}