CVE-2026-8678

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-07-11. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

The MyParcel plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.25.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to view and modify shipment options — including carrier, delivery type, package type, number of labels, weight, signature requirement, and insurance — on any arbitrary order.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

July 11, 2026

Last Modified

July 13, 2026

References (8)

Vendor Advisories for CVE-2026-8678(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 / 48× 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. 2026-08-03 10:36 UTCEPSS rescore
  2. 2026-08-03 08:28 UTCGHSA enrichment
  3. 2026-08-02 09:02 UTCEG score recompute
  4. 2026-08-02 09:02 UTCGHSA enrichment
  5. 2026-08-02 02:27 UTCEPSS rescore
  6. 2026-08-01 09:41 UTCEG score recompute
  7. 2026-08-01 09:41 UTCGHSA enrichment
  8. 2026-08-01 04:16 UTCEPSS rescore
  9. 2026-07-31 10:19 UTCGHSA enrichment
  10. 2026-07-30 10:57 UTCEG score recompute
  11. 2026-07-30 10:57 UTCGHSA enrichment
  12. 2026-07-30 01:30 UTCEPSS rescore
  13. 2026-07-29 11:33 UTCEG score recompute
  14. 2026-07-29 11:33 UTCGHSA enrichment
  15. 2026-07-28 15:37 UTCEPSS rescore
  16. 2026-07-28 12:10 UTCEG score recompute
  17. 2026-07-28 12:10 UTCGHSA enrichment
  18. 2026-07-27 14:14 UTCEPSS rescore
  19. 2026-07-27 11:26 UTCEG score recompute
  20. 2026-07-27 11:26 UTCGHSA enrichment
  21. 2026-07-26 14:54 UTCEPSS rescore
  22. 2026-07-26 12:05 UTCEG score recompute
  23. 2026-07-26 12:04 UTCGHSA enrichment
  24. 2026-07-25 14:18 UTCEPSS rescore
  25. 2026-07-24 14:18 UTCEPSS rescore
Show 23 more
  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:23 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:25 UTCEPSS rescore
  5. 2026-07-21 15:25 UTCEPSS rescore
  6. 2026-07-20 17:08 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 02:29 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-16 23:39 UTCGHSA enrichment
  11. 2026-07-16 17:03 UTCEPSS rescore
  12. 2026-07-16 00:18 UTCGHSA enrichment
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-15 00:56 UTCGHSA enrichment
  16. 2026-07-14 01:34 UTCGHSA enrichment
  17. 2026-07-13 22:31 UTCEPSS rescore
  18. 2026-07-13 06:13 UTCEPSS rescore
  19. 2026-07-13 02:12 UTCGHSA enrichment
  20. 2026-07-12 05:46 UTCEPSS rescore
  21. 2026-07-12 02:50 UTCGHSA enrichment
  22. 2026-07-11 03:28 UTCEG score recompute
  23. 2026-07-11 03:27 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8678?
CVE-2026-8678 is a medium vulnerability published on July 11, 2026. The MyParcel plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.25.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and…
When was CVE-2026-8678 disclosed?
CVE-2026-8678 was first published in the National Vulnerability Database on July 11, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8678 actively exploited?
CVE-2026-8678 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 85.8% of all scored CVEs.
What is the CVSS score of CVE-2026-8678?
CVE-2026-8678 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-8678?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8678, 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

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