CVE-2026-15989

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-10-01. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3.316. This is due to the Register & Login add-on's before_email_success_msg() function whitelisting the client-submitted 'role' key and copying it into the user-data array that is passed directly to wp_insert_user(), without validating the submitted role against the administrator-configured register_user_role, without an allow-list, and without any current_user_can() capability check. This makes it possible for unauthenticated attackers to register a new account with the Administrator role by injecting role=administrator into the data submitted to any published Super Forms registration form (register_login_action='register').

CVSS v3
9.8
EG Score
9.8CRITICALhigh confidence
EG Risk
59
EG Risk 59/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
19th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 1, 2026

Last Modified

October 1, 2026

Advisory Details (1)

Auto-updated Oct 1, 2026
Patch available. Sources: github_pr.
github_pr Patch Available

fix(security): hardening update

Patch available: RensTillmann/super-forms v6.3.317 (PR #205 merged 2026-09-17)

https://github.com/RensTillmann/super-forms/pull/205

Vendor Advisories for CVE-2026-15989(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 30× in last 7d / 30× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-04 08:59 UTCGHSA enrichment
  2. 2026-10-04 05:03 UTCGHSA enrichment
  3. 2026-10-04 01:09 UTCGHSA enrichment
  4. 2026-10-03 21:15 UTCGHSA enrichment
  5. 2026-10-03 17:20 UTCEG score recompute
  6. 2026-10-03 17:20 UTCGHSA enrichment
  7. 2026-10-03 14:25 UTCEPSS rescore
  8. 2026-10-03 13:26 UTCGHSA enrichment
  9. 2026-10-03 09:30 UTCGHSA enrichment
  10. 2026-10-03 05:35 UTCGHSA enrichment
  11. 2026-10-03 01:40 UTCGHSA enrichment
  12. 2026-10-02 21:45 UTCGHSA enrichment
  13. 2026-10-02 17:50 UTCEG score recompute
  14. 2026-10-02 17:50 UTCGHSA enrichment
  15. 2026-10-02 13:56 UTCGHSA enrichment
  16. 2026-10-02 10:01 UTCGHSA enrichment
  17. 2026-10-02 06:07 UTCGHSA enrichment
  18. 2026-10-02 02:11 UTCGHSA enrichment
  19. 2026-10-01 22:12 UTCGHSA enrichment
  20. 2026-10-01 18:17 UTCGHSA enrichment
  21. 2026-10-01 14:21 UTCEG score recompute
  22. 2026-10-01 14:21 UTCGHSA enrichment
  23. 2026-10-01 13:56 UTCEG score recompute
  24. 2026-10-01 13:56 UTCGHSA enrichment
  25. 2026-10-01 12:49 UTCGHSA enrichment
Show 5 more
  1. 2026-10-01 12:18 UTCEG score recompute
  2. 2026-10-01 12:18 UTCGHSA enrichment
  3. 2026-10-01 08:22 UTCEG score recompute
  4. 2026-10-01 07:56 UTCEG score recompute
  5. 2026-10-01 07:55 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15989?
CVE-2026-15989 is a critical vulnerability published on October 1, 2026. The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3.316. This is due to the Register & Login add-on's beforeemailsuccessmsg() function whitelisting the client-submitted 'role' key and copying it into the…
When was CVE-2026-15989 disclosed?
CVE-2026-15989 was first published on October 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15989 actively exploited?
CVE-2026-15989 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15989?
CVE-2026-15989 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15989?
A fix for CVE-2026-15989 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-15989 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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