NVD / CVE Program· CNA Patchstack

CVE-2025-26977: WordPress FileBird plugin <= 6.4.2.1 - Insecure Direct Object References (IDOR) vulnerability

Noroxi assessment

Priority: Monitor (action score 28/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.41% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Ninja Team Filebird 6.4.6.
Severity is disputed: the assigning authority (CNA) scores it 3.8, NVD 7.2.

Low priority for now. Upgrade to Ninja Team Filebird 6.4.6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Authorization Bypass Through User-Controlled Key vulnerability in Ninja Team Filebird filebird allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Filebird: from n/a through <= 6.4.2.1.

HighCVSS 7.2 · v3.1—No exploit Fix available

Broken access control (IDOR)

Published: Feb 25, 2025
Updated: Jun 17, 2026
EPSS: 0.4% · 35th percentile
CWE: CWE-639

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.2 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.2
CNA · Patchstack: 3.8; 3.4 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Is FileBird – WordPress Media Library Folders & File Manager on your site?

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
ninjateam	filebird	cpe:2.3:a:ninjateam:filebird

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

ninjateam filebirdbefore 6.4.6

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Patchstack). Independent of NVD's CPE analysis and usually ahead of it.

Ninja Team Filebird
- up to and including 6.4.2.1affectedfixed in 6.4.6

Same product

ninjateam: all records

Other highest-scoring records for the same primary product.

CVE-2021-24385Filebird 4.7.3 - Unauthenticated SQL Injection
40Plan
CVE-2024-35166WordPress FileBird – WordPress Media Library Folders & File Manager plugin <= 5.6.3 - Sensitive Data Exposure vulnerability
30Monitor
CVE-2024-53825WordPress FileBird Lite plugin <= 6.3.2 - Broken Access Control vulnerability
28Monitor

Published before and after this one in the same product

← EarlierCVE-2024-2345May 2, 2024 · FileBird – WordPress Media Library Folders & File Manager <= 5.6.3 - Authenticated (Author+) Stored Cross-Site Scripting
21Monitor
← EarlierCVE-2024-2346May 2, 2024 · FileBird – WordPress Media Library Folders & File Manager <= 5.6.3 - Authenticated (Author+) Insecure Direct Object Reference
21Monitor
← EarlierCVE-2023-25966Dec 9, 2024 · WordPress FileBird plugin <= 5.1.4 - Broken Access Control vulnerability
26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Ninja Team Filebird	6.4.6	Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Revan ArifioPatchstack Bug Bounty Programfinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2024-2346299 days apartFileBird – WordPress Media Library Folders & File Manager <= 5.6.3 - Authenticated (Author+) Insecure Direct Object Reference
21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
Administrator privileges are required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-639 · Authorization Bypass Through User-Controlled Key

CVSS vector

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

nvd-primary

Root cause

The endpoint fetches the record by the ID sent in the request, but never checks whether the record belongs to the requesting user.

The bug in code

The whole CWE-639 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const invoice = await Invoice.findById(req.params.id);
2res.json(invoice);

Fixed

1const invoice = await Invoice.findOne({
2  id: req.params.id,
3  ownerId: req.user.id,
4});
5if (!invoice) return res.sendStatus(404);
6res.json(invoice);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

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References

patchstack.com/database/Wordpress/Plugin/filebird/vulnerability/wordpress-filebird-plugin-6-4-2-1-insecure-direct-object-references-idor-vulnerability?_s_id=cve

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records