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CVE.org (no NVD analysis yet)· CNA VulnCheck

CVE-2026-111895: phpMyFAQ 3.2.0 before 4.0.0 and 4.0.2 before 4.2.0-beta Account Takeover via Entra ID preferred_username

HighCVSS 7.6 · v4.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 0.37% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: thorsten phpMyFAQ 4.0.0, 4.2.0-beta.

Low priority for now. Upgrade to thorsten phpMyFAQ 4.0.0, 4.2.0-beta 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

phpMyFAQ 3.2.0 before 4.0.0 and 4.0.2 before 4.2.0-beta contains an authentication bypass in its Microsoft Entra ID login flow, which links users by the mutable preferred_username claim and whose AuthEntraId::create() ignores the duplicate-login exception while continuing with the existing local account. Attackers controlling an Entra identity in the configured tenant with a matching preferred_username can take over that local account, including super-admin accounts.

Published
Oct 17, 2026
Updated
Oct 19, 2026
EPSS
0.3% · 31th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulnCheck
7.6
NVD has not scored this yet; the score shown is the CNA’s.

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

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

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-111895

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

—

Versions reported by the vendor

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

  • thorsten phpMyFAQ

    • 4.0.0, 4.2.0-betanot affected
    • 3.2.0 and later · before 4.0.0affected · semver
    • 4.0.2 and later · before 4.2.0-betaaffected · semver

Same product

thorsten: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-46364phpMyFAQ - SQL Injection via User-Agent Header in BuiltinCaptcha
    38Monitor
  • CVE-2026-111911phpMyFAQ 4.0.0 before 4.1.9 Authentication Bypass via WebAuthn Credential Injection
    37Monitor
  • CVE-2026-66398phpMyFAQ before 4.1.6 Remote Code Execution via Configuration API
    37Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-111893Oct 17, 2026 · phpMyFAQ 4.2.0-alpha before 4.2.0-beta Privilege Escalation via Group Category Restrictions API
    34Monitor
  • ← EarlierCVE-2026-111894Oct 17, 2026 · phpMyFAQ 3.2.1 before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Stored XSS via iframe data: URI
    20Monitor
  • Later →CVE-2026-111896Oct 17, 2026 · phpMyFAQ 4.2.0-alpha before 4.2.0-beta Stored XSS via SVG Upload Sanitizer Bypass
    20Monitor

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
thorsten phpMyFAQ4.0.0Vendor (CNA)
thorsten phpMyFAQ4.2.0-betaVendor (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.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 13, 2026+27 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Credits

All researchers

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

Variant candidates

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

  • CVE-2026-1119110 days apartphpMyFAQ 4.0.0 before 4.1.9 Authentication Bypass via WebAuthn Credential Injection
    37Monitor
  • CVE-2026-1118820 days apartphpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta TOTP 2FA Bypass via SSO Callbacks
    34Monitor
  • CVE-2026-5673723 days apartphpMyFAQ's two-factor authentication login bypasses the password factor
    32Monitor
  • CVE-2026-1118980 days apartphpMyFAQ 4.2.0-alpha before 4.2.0-beta Account Takeover via Keycloak Implicit Account Linking
    30Monitor

Chain candidates

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

  • CVE-2026-6639882 days apartphpMyFAQ before 4.1.6 Remote Code Execution via Configuration API
    37Monitor
  • CVE-2026-5673823 days apartphpMyFAQ has SQL Injection in `StopWords::add()` — Unescaped Stop Word Insertion
    34Monitor
  • CVE-2026-6639782 days apartphpMyFAQ before 4.1.6 Path Traversal via category image deletion
    34Monitor
  • CVE-2026-1161828 days apartphpMyFAQ before 4.1.10 SSRF via PDF Export Image Fetching
    21Monitor

Not on record for this CVE: patch commit or PR link · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

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

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

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

Change log

  1. SSVC exploitation— → poc
  2. Exploit maturity— → none
  3. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

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

All records