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NVD / CVE Program· CNA WPScan

CVE-2021-24647: Pie Register < 3.7.1.6 - Unauthenticated Arbitrary Login

HighCVSS 8.1 · v3.1—Proof of concept No fix recorded

Noroxi assessment

Priority: Monitor (action score 35/100)

  • A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 9.8% (FIRST EPSS); higher than 95.6% of all records.
  • 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.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

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

The Registration Forms – User profile, Content Restriction, Spam Protection, Payment Gateways, Invitation Codes WordPress plugin before 3.1.7.6 has a flaw in the social login implementation, allowing unauthenticated attacker to login as any user on the site by only knowing their user ID or username

Published
Nov 8, 2021
Updated
Jun 16, 2026
EPSS
9.8% · 95th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
3 / 30 · 9.8%

Is Pie Register – User Registration, Profiles & Content Restriction on your site?

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Is Pie Register – User Registration, Profiles & Content Restriction 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.

VendorProduct
genetechsolutionspie register

Versions reported by the vendor

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

  • Unknown Registration Forms – User profile, Content Restriction, Spam Protection, Payment Gateways, Invitation Codes

    • 3.1.7.6 and later · before 3.1.7.6affected

Affected versions

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

  • genetechsolutions pie registerbefore 3.7.1.6

Same product

genetechsolutions: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-24731Pie Register < 3.7.1.6 - Unauthenticated SQL Injection
    41Plan
  • CVE-2018-10969SQL injection vulnerability in the Pie Register plugin before 3.0.10 for WordPress allows remote attackers to execute arbitrary SQL…
    41Plan
  • CVE-2019-15659The pie-register plugin before 3.1.2 for WordPress has SQL injection, a different issue than CVE-2018-10969.
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2019-1010207Jul 23, 2019 · Genetechsolutions Pie Register 3.0.15 is affected by: Cross Site Scripting (XSS).
    24Monitor
  • ← EarlierCVE-2021-24239Apr 22, 2021 · Pie Register < 3.7.0.1 - Reflected Cross-Site Scripting (XSS)
    24Monitor
  • Later →CVE-2022-4024Dec 19, 2022 · Pie Register < 3.8.1.3 - Unauthenticated Arbitrary User Deletion
    26Monitor

Remediation

Which version to upgrade to

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

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2021-24647 —
Proof-of-concept repository on GitHubstars:12023-06-15

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. First PoC+583 d
  3. TodayNov 12, 2026+1830 d

Credits

All researchers

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

Not on record for this CVE: EPSS history · patch commit or PR link · variant or chain candidate · public bounty program.

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
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
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-primary

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.

All records