CVE-2026-77701

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-08-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 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 WCFM Marketplace WordPress plugin before 3.8.2 does not correctly verify that the person requesting a refund owns the order, allowing unauthenticated users to create refund requests against any guest checkout order on the site.

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
12%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 28, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

WCFM Marketplace < 3.8.2 – Unauthenticated Refund Request Creation on Guest Orders | CVE 2026-77701 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/38195936-5dc2-474f-84e5-fdcc0b39caca/

Vendor Advisories for CVE-2026-77701(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 13× in last 7d / 13× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 19:30 UTCEG score recompute
  3. 2026-08-29 19:30 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-28 18:58 UTCEG score recompute
  6. 2026-08-28 18:58 UTCGHSA enrichment
  7. 2026-08-28 16:36 UTCGHSA enrichment
  8. 2026-08-28 15:32 UTCEG score recompute▲ 5.30
  9. 2026-08-28 15:31 UTCGHSA enrichment
  10. 2026-08-28 15:25 UTCMITRE cvelistV5CVSS v3 → 5.3 · severity → MEDIUM
  11. 2026-08-28 08:20 UTCNVD update
  12. 2026-08-28 07:39 UTCEG score recompute
  13. 2026-08-28 07:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-77701?
CVE-2026-77701 is a medium vulnerability published on August 28, 2026. The WCFM Marketplace WordPress plugin before 3.8.2 does not correctly verify that the person requesting a refund owns the order, allowing unauthenticated users to create refund requests against any guest checkout order on the site.
When was CVE-2026-77701 disclosed?
CVE-2026-77701 was first published in the National Vulnerability Database on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77701 actively exploited?
CVE-2026-77701 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 87.5% of all scored CVEs.
What is the CVSS score of CVE-2026-77701?
CVE-2026-77701 has a CVSS v3.1 base score of 5.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-77701?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77701, 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-2026-77701

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