Vulnerability report

Active exploitation observed Confirmed confidence Not in CISA KEV

CVE-2014-2383

dompdf

Dompdf

Watch CVE-2014-2383 Browse KEV feed
Severity
CVSS 6.8 · Medium
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
39.4%
First observed
27 Jun 2026
Last observed
25 Sep 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2014-2383 is an unauthenticated vulnerability affecting dompdf. dompdf.php in dompdf before 0.6.1, when DOMPDF_ENABLE_PHP is enabled, allows context-dependent attackers to bypass chroot protections and read...

Is it exploited?

Yes. Previdian sensors observed exploitation attempts with confirmed confidence.

Who is affected?

dompdf.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

dompdf

dompdf.php in dompdf before 0.6.1, when DOMPDF_ENABLE_PHP is enabled, allows context-dependent attackers to bypass chroot protections and read arbitrary files via a PHP protocol and wrappers in the input_file parameter, as demonstrated by a php://filter/read=convert.base64-encode/resource in the input_file parameter.

Published
28 Apr 2014
Exploitation Reported
27 Jun 2026
Attack vector
Remote
Complexity
—
Privileges
None
User interaction
—

Tags

php nuclei_scanner

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

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

Exploited in the wild

Previdian

Recorded 27 Jun 2026

Previdian independently recorded this as exploited after first seeing it in honeypot sensors.

Active exploitation observed

Previdian sensor

First observed 27 Jun 2026

Previdian first observed exploitation attempts targeting this vulnerability in our honeypot sensors.

Proof of concept available

GitHub

Recorded 26 Jan 2023

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.

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Source Added
Previdian Sensors First 2026-07-25 11:07 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

First-party evidence of exploitation activity

Previdian sensors recorded exploitation attempts targeting this vulnerability. The cards and chart show volume, unique attackers, and daily activity.

148

Attempts observed

19

Unique attacker IPs

12

Attacker countries

AF · CH · CL · CN · GB · HK · HU · IR · LT · NL · RU · US

7

Sensors observed

CVE-2014-2383 exploitation attempts over the last 84 days

Daily events observed by Previdian sensors

Updated 09 Oct 2026

0
11
11
11
0
11
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
10
0
0
0
0
0
0
0
0
11
0
0
0
0
0
0
0
0
0
0
0
0
11
0
0
0
0
0
0
0
0
0
0
0
5
11
11
0
0
0
0
0
11
11
11
0
0
0
0
0
0
0
0
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0
0
18 Jul 4 Aug 21 Aug 7 Sep 9 Oct

First observed 27 Jun 2026 · Last observed 25 Sep 2026

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Detection

Operational artifacts and observed signals

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

Observed signals

Request targets
User-Agents
Callback hosts
11
59
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

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

Learn about virtual patches →

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

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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/2014/CVE-2014-2383.yaml 25 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v2.0

6.8 Medium

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

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

EPSS

39.4%

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

Weaknesses

Exposure of Sensitive Information to an Unauthorized Actor CWE-200

Potential Proof of Concepts

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

Dompdf < v0.6.0 - Local File Inclusion

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. 09:30 UTC

    Indicators of compromise added (92)

    Indicators of compromise recorded

  2. 09:30 UTC

    Observed by Previdian sensors

    Evidence-backed exploitation signal

  3. 14:20 UTC

    Public PoC available

    Public proof-of-concept code published

  4. 00:00 UTC

    Nuclei template available

    Scanner coverage available

  5. 00:00 UTC

    CVE published

    Vulnerability disclosed publicly

  6. 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-2014-2383

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2014-2383",
  "confidence": "Confirmed",
  "cvss_score": 6.8,
  "cvss_estimated": false,
  "epss_score": 0.39374,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 148, "sensors": 7 }
}