CVE-2026-56053

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
31.1%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
No patch confirmed yet.
generic

PHP Object Injection in WordPress EventPrime Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/eventprime-event-calendar-management/vulnerability/wordpress-eventprime-plugin-4-3-4-1-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-56053(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 38× in last 7d / 64× 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. 2026-07-07 04:42 UTCEG score recompute
  2. 2026-07-07 04:42 UTCGHSA enrichment
  3. 2026-07-06 16:36 UTCEG score recompute
  4. 2026-07-06 16:36 UTCGHSA enrichment
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 04:34 UTCEG score recompute
  8. 2026-07-06 04:33 UTCGHSA enrichment
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 16:31 UTCEG score recompute
  12. 2026-07-05 16:31 UTCGHSA enrichment
  13. 2026-07-05 04:29 UTCEG score recompute
  14. 2026-07-05 04:29 UTCGHSA enrichment
  15. 2026-07-05 02:31 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 16:26 UTCEG score recompute
  18. 2026-07-04 16:25 UTCGHSA enrichment
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-04 04:23 UTCEG score recompute
  22. 2026-07-04 04:23 UTCGHSA enrichment
  23. 2026-07-03 16:20 UTCEG score recompute
  24. 2026-07-03 16:20 UTCGHSA enrichment
  25. 2026-07-03 04:18 UTCEG score recompute
Show 39 more
  1. 2026-07-03 04:18 UTCGHSA enrichment
  2. 2026-07-02 16:17 UTCEG score recompute
  3. 2026-07-02 16:17 UTCGHSA enrichment
  4. 2026-07-02 04:15 UTCEG score recompute
  5. 2026-07-02 04:15 UTCGHSA enrichment
  6. 2026-07-01 16:11 UTCEG score recompute
  7. 2026-07-01 16:11 UTCGHSA enrichment
  8. 2026-07-01 15:07 UTCEPSS rescore
  9. 2026-07-01 04:09 UTCEG score recompute
  10. 2026-07-01 04:09 UTCGHSA enrichment
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-30 16:08 UTCEG score recompute
  13. 2026-06-30 16:08 UTCGHSA enrichment
  14. 2026-06-30 04:06 UTCEG score recompute
  15. 2026-06-30 04:06 UTCGHSA enrichment
  16. 2026-06-29 16:02 UTCEG score recompute
  17. 2026-06-29 16:02 UTCGHSA enrichment
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-29 04:00 UTCEG score recompute
  21. 2026-06-29 04:00 UTCGHSA enrichment
  22. 2026-06-28 15:55 UTCEG score recompute
  23. 2026-06-28 15:55 UTCGHSA enrichment
  24. 2026-06-28 14:07 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
  26. 2026-06-28 04:56 UTCEPSS rescore
  27. 2026-06-28 03:54 UTCEG score recompute
  28. 2026-06-28 03:54 UTCGHSA enrichment
  29. 2026-06-27 15:52 UTCEG score recompute
  30. 2026-06-27 15:52 UTCGHSA enrichment
  31. 2026-06-27 03:50 UTCEG score recompute
  32. 2026-06-27 03:50 UTCGHSA enrichment
  33. 2026-06-27 03:08 UTCEPSS rescore
  34. 2026-06-26 15:48 UTCEG score recompute
  35. 2026-06-26 15:48 UTCGHSA enrichment
  36. 2026-06-26 03:47 UTCEG score recompute
  37. 2026-06-26 03:47 UTCGHSA enrichment
  38. 2026-06-25 15:46 UTCEG score recompute
  39. 2026-06-25 15:46 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-56053?
CVE-2026-56053 is a high vulnerability published on June 25, 2026. Subscriber PHP Object Injection in EventPrime <= 4.3.4.1 versions.
When was CVE-2026-56053 disclosed?
CVE-2026-56053 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56053 actively exploited?
CVE-2026-56053 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56053?
CVE-2026-56053 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-56053?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56053, 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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