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Noroxi
CVE-2026-96334· CVE.org (no NVD analysis yet)· CNA Patchstack

WordPress User Registration plugin <= 5.2.7 - Broken Access Control vulnerability

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.14% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: ThemeGrill User Registration 5.2.8.

Low priority for now. Upgrade to ThemeGrill User Registration 5.2.8 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

Missing Authorization vulnerability in ThemeGrill User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through 5.2.7.

MediumCVSS 5.6 · v3.1—No exploit Fix available
Published
Oct 9, 2026
Updated
Oct 11, 2026
EPSS
0.1% · 3th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Patchstack
5.6
NVD has not scored this yet; the score shown is the CNA’s.

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

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Is User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder on your site?

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 (Patchstack). Independent of NVD's CPE analysis and usually ahead of it.

  • ThemeGrill User Registration

    • up to and including 5.2.7affectedfixed in 5.2.8

Same product

themegrill: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-25425WordPress User Registration plugin <= 5.1.2 - Broken Access Control vulnerability
    30Monitor
  • CVE-2026-109692WordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
    28Monitor
  • CVE-2026-105882WordPress User Registration plugin <= 5.2.8 - Cross Site Scripting (XSS) vulnerability
    26Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-52701Jun 26, 2026 · WordPress User Registration plugin <= 5.2.2 - Broken Access Control vulnerability
    26Monitor
  • Later →CVE-2026-103076Oct 13, 2026 · WordPress User Registration plugin <= 5.2.8 - Cross Site Request Forgery (CSRF) vulnerability
    21Monitor
  • Later →CVE-2026-105881Oct 13, 2026 · WordPress User Registration plugin <= 5.2.8 - Cross Site Scripting (XSS) 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 / packageFixed versionSource
ThemeGrill User Registration5.2.8Vendor (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. TodayOct 24, 2026+15 d
EPSS, last 120 days

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

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.

Variant candidates

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

  • CVE-2026-25425116 days apartWordPress User Registration plugin <= 5.1.2 - Broken Access Control vulnerability
    30Monitor
  • CVE-2026-1096926 days apartWordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
    28Monitor
  • CVE-2026-52701105 days apartWordPress User Registration plugin <= 5.2.2 - Broken Access Control vulnerability
    26Monitor
  • CVE-2026-1065974 days apartWordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
    21Monitor
  • CVE-2026-1065984 days apartWordPress User Registration plugin <= 5.2.8 - Sensitive Data Exposure vulnerability
    21Monitor
  • CVE-2026-1096994 days apartWordPress User Registration plugin <= 5.2.8 - Broken Access Control vulnerability
    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.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
Low
Availability impact
Low

Weakness class (CWE)

CWE-862 · Missing Authorization

CVSS vector

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

nvd-secondary

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— → none
  2. Exploit maturity— → none
  3. Fix✗ → ✓

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

References

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

All records