CVE-2026-77793

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-02. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The RegistrationMagic WordPress plugin before 6.0.9.9 does not validate the total price of a paid registration server-side, allowing unauthenticated users to complete a paid registration without paying and obtain an activated account.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

RegistrationMagic < 6.0.9.9 – Unauthenticated Payment Bypass via Omitted Price Field | CVE 2026-77793 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/83f11a27-be9c-4b27-b4ea-d0c58e0d7829/

Vendor Advisories for CVE-2026-77793(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 17× in last 7d / 45× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 19:11 UTCGHSA enrichment
  3. 2026-09-17 20:38 UTCEG score recompute
  4. 2026-09-17 20:38 UTCGHSA enrichment
  5. 2026-09-16 21:58 UTCEG score recompute
  6. 2026-09-16 21:58 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-15 23:25 UTCEG score recompute
  10. 2026-09-15 23:25 UTCGHSA enrichment
  11. 2026-09-15 03:12 UTCEPSS rescore
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-15 00:50 UTCGHSA enrichment
  14. 2026-09-14 02:17 UTCEG score recompute
  15. 2026-09-14 02:17 UTCGHSA enrichment
  16. 2026-09-13 03:45 UTCEG score recompute
  17. 2026-09-13 03:45 UTCGHSA enrichment
  18. 2026-09-12 05:12 UTCEG score recompute
  19. 2026-09-12 05:12 UTCGHSA enrichment
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 06:39 UTCEG score recompute
  22. 2026-09-11 06:39 UTCGHSA enrichment
  23. 2026-09-10 09:35 UTCEPSS rescore
  24. 2026-09-10 08:06 UTCGHSA enrichment
  25. 2026-09-09 09:33 UTCEG score recompute
Show 20 more
  1. 2026-09-09 09:33 UTCGHSA enrichment
  2. 2026-09-08 22:01 UTCEPSS rescore
  3. 2026-09-08 11:00 UTCEG score recompute
  4. 2026-09-08 11:00 UTCGHSA enrichment
  5. 2026-09-07 12:18 UTCEG score recompute
  6. 2026-09-07 12:17 UTCGHSA enrichment
  7. 2026-09-06 13:48 UTCEPSS rescore
  8. 2026-09-06 13:43 UTCEG score recompute
  9. 2026-09-06 13:43 UTCGHSA enrichment
  10. 2026-09-05 15:11 UTCGHSA enrichment
  11. 2026-09-04 16:37 UTCEG score recompute
  12. 2026-09-04 16:37 UTCGHSA enrichment
  13. 2026-09-04 05:07 UTCEPSS rescore
  14. 2026-09-03 18:02 UTCGHSA enrichment
  15. 2026-09-03 14:07 UTCEG score recompute
  16. 2026-09-03 14:06 UTCGHSA enrichment
  17. 2026-09-02 15:31 UTCEG score recompute
  18. 2026-09-02 15:08 UTCEG score recompute
  19. 2026-09-02 14:30 UTCEG score recompute
  20. 2026-09-02 14:26 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-77793?
CVE-2026-77793 is a medium vulnerability published on September 2, 2026. The RegistrationMagic WordPress plugin before 6.0.9.9 does not validate the total price of a paid registration server-side, allowing unauthenticated users to complete a paid registration without paying and obtain an activated account.
When was CVE-2026-77793 disclosed?
CVE-2026-77793 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77793 actively exploited?
CVE-2026-77793 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 90.6% of all scored CVEs.
What is the CVSS score of CVE-2026-77793?
CVE-2026-77793 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-77793?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77793, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-77793

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