Vulnerability report

Active exploitation observed Confirmed confidence Not in CISA KEV

CVE-2016-20080

Brandfolder Path Traversal

Brandfolder / Brandfolder · 0 to <= 3.0

View live feed Monitor via API Watch CVE-2016-20080
Severity
CVSS 6.9 · Medium
Confidence
Confirmed
Exploit status
Observed in sensors
EPSS
0.4%
First observed
21 Jun 2026
Last observed
21 Sep 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2016-20080 is an unauthenticated vulnerability affecting Brandfolder Brandfolder. WordPress Brandfolder plugin version 3.0 and earlier contains a local file inclusion vulnerability in callback.php that allows...

Is it exploited?

Yes. Previdian sensors observed exploitation attempts with confirmed confidence. Also confirmed by third-party sources.

Who is affected?

Brandfolder / Brandfolder 0 to <= 3.0.

What should we do?

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

Overview

Brandfolder Path Traversal

WordPress Brandfolder plugin version 3.0 and earlier contains a local file inclusion vulnerability in callback.php that allows unauthenticated attackers to include arbitrary files by manipulating the wp_abspath parameter.

Attackers can supply path traversal sequences or remote URLs through the wp_abspath parameter to read sensitive files like wp-config.php or execute remote code.

Brandfolder Affected
Brandfolder
Through 3.0
View vendor advisory (opens in new tab)
Published
15 Jun 2026
Exploited Since
21 Jun 2026
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None

Tags

wordpress php

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

The Shadowserver

Recorded 22 Sep 2026

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

Active exploitation observed

Previdian sensor

First observed 21 Jun 2026

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

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 2026-09-22 00:00 UTC
Previdian 2026-09-23 11:15 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.

6

Attempts observed

2

Unique attacker IPs

2

Attacker countries

LT · YE

3

Sensors observed

CVE-2016-20080 exploitation attempts over the last 91 days

Daily events observed by Previdian sensors

Updated 24 Sep 2026

0
2
0
0
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
2
0
0
0
26 Jun 15 Jul 3 Aug 22 Aug 24 Sep

First observed 21 Jun 2026 · Last observed 21 Sep 2026

Pro adds sensor region and window summaries. Enterprise adds raw IPs, paths, User-Agents, and payloads.

Request telemetry access

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
2
6
0

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

Scanner coverage

No scanner integrations recorded yet.

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.

Learn about Pro API access

Risk and context

Severity, weaknesses, and research context

CVSS v4.0

6.9 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS

0.4%

Weaknesses

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') CWE-98

All CVSS Scores

CVSS v4.0 6.9 Medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS v3.1 6.2 Medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Timeline

From disclosure to observed exploitation

  1. 00:00 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  2. 14:44 UTC

    Indicators of compromise added (6)

    Indicators of compromise recorded

  3. 14:44 UTC

    Observed by Previdian sensors

    Evidence-backed exploitation signal

  4. 12:00 UTC

    CVE published

    Vulnerability disclosed publicly

  5. 11:47 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.

View Pro pricing Read API docs
  • 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-2016-20080

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2016-20080",
  "confidence": "Confirmed",
  "cvss_score": 6.9,
  "cvss_estimated": false,
  "epss_score": 0.0039,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 6, "sensors": 3 }
}