CVE-2026-56053

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 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(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
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 11× in last 7d / 87× 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. 2026-07-27 03:04 UTCGHSA enrichment
  2. 2026-07-26 15:00 UTCEG score recompute
  3. 2026-07-26 15:00 UTCGHSA enrichment
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-25 14:18 UTCEPSS rescore
  6. 2026-07-24 14:18 UTCEPSS rescore
  7. 2026-07-23 14:18 UTCEPSS rescore
  8. 2026-07-23 03:20 UTCEG score recompute
  9. 2026-07-22 14:08 UTCEPSS rescore
  10. 2026-07-21 15:25 UTCEPSS rescore
  11. 2026-07-20 17:08 UTCEPSS rescore
  12. 2026-07-19 14:31 UTCEPSS rescore
  13. 2026-07-19 14:31 UTCEPSS rescore
  14. 2026-07-19 02:29 UTCEPSS rescore
  15. 2026-07-18 10:04 UTCEPSS rescore
  16. 2026-07-17 05:58 UTCGHSA enrichment
  17. 2026-07-16 17:56 UTCGHSA enrichment
  18. 2026-07-16 17:03 UTCEPSS rescore
  19. 2026-07-16 05:54 UTCGHSA enrichment
  20. 2026-07-15 17:52 UTCGHSA enrichment
  21. 2026-07-15 16:57 UTCEPSS rescore
  22. 2026-07-15 16:57 UTCEPSS rescore
  23. 2026-07-15 05:43 UTCGHSA enrichment
  24. 2026-07-15 02:00 UTCEPSS rescore
  25. 2026-07-15 02:00 UTCEPSS rescore
Show 68 more
  1. 2026-07-14 17:24 UTCGHSA enrichment
  2. 2026-07-14 05:23 UTCGHSA enrichment
  3. 2026-07-13 22:31 UTCEPSS rescore
  4. 2026-07-13 17:22 UTCGHSA enrichment
  5. 2026-07-13 06:13 UTCEPSS rescore
  6. 2026-07-13 06:13 UTCEPSS rescore
  7. 2026-07-13 05:20 UTCGHSA enrichment
  8. 2026-07-12 17:17 UTCGHSA enrichment
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-12 05:15 UTCGHSA enrichment
  11. 2026-07-11 17:13 UTCGHSA enrichment
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-11 08:27 UTCEPSS rescore
  14. 2026-07-11 05:12 UTCGHSA enrichment
  15. 2026-07-10 17:08 UTCGHSA enrichment
  16. 2026-07-10 05:06 UTCGHSA enrichment
  17. 2026-07-09 19:10 UTCEPSS rescore
  18. 2026-07-09 19:10 UTCEPSS rescore
  19. 2026-07-09 17:03 UTCGHSA enrichment
  20. 2026-07-09 05:01 UTCGHSA enrichment
  21. 2026-07-08 16:56 UTCGHSA enrichment
  22. 2026-07-08 15:16 UTCEPSS rescore
  23. 2026-07-08 15:16 UTCEPSS rescore
  24. 2026-07-08 04:54 UTCGHSA enrichment
  25. 2026-07-07 16:43 UTCGHSA enrichment
  26. 2026-07-07 13:46 UTCEPSS rescore
  27. 2026-07-07 13:46 UTCEPSS rescore
  28. 2026-07-07 04:42 UTCGHSA enrichment
  29. 2026-07-06 16:36 UTCGHSA enrichment
  30. 2026-07-06 16:27 UTCEPSS rescore
  31. 2026-07-06 16:27 UTCEPSS rescore
  32. 2026-07-06 04:33 UTCGHSA enrichment
  33. 2026-07-06 02:23 UTCEPSS rescore
  34. 2026-07-06 02:23 UTCEPSS rescore
  35. 2026-07-05 16:31 UTCGHSA enrichment
  36. 2026-07-05 04:29 UTCGHSA enrichment
  37. 2026-07-05 02:31 UTCEPSS rescore
  38. 2026-07-05 02:30 UTCEPSS rescore
  39. 2026-07-04 16:25 UTCGHSA enrichment
  40. 2026-07-04 06:31 UTCEPSS rescore
  41. 2026-07-04 06:31 UTCEPSS rescore
  42. 2026-07-04 04:23 UTCGHSA enrichment
  43. 2026-07-03 16:20 UTCGHSA enrichment
  44. 2026-07-03 04:18 UTCGHSA enrichment
  45. 2026-07-02 16:17 UTCGHSA enrichment
  46. 2026-07-02 04:15 UTCGHSA enrichment
  47. 2026-07-01 16:11 UTCGHSA enrichment
  48. 2026-07-01 15:07 UTCEPSS rescore
  49. 2026-07-01 04:09 UTCGHSA enrichment
  50. 2026-06-30 23:22 UTCEPSS rescore
  51. 2026-06-30 16:08 UTCGHSA enrichment
  52. 2026-06-30 04:06 UTCGHSA enrichment
  53. 2026-06-29 16:02 UTCGHSA enrichment
  54. 2026-06-29 14:06 UTCEPSS rescore
  55. 2026-06-29 14:06 UTCEPSS rescore
  56. 2026-06-29 04:00 UTCGHSA enrichment
  57. 2026-06-28 15:55 UTCGHSA enrichment
  58. 2026-06-28 14:07 UTCEPSS rescore
  59. 2026-06-28 04:56 UTCEPSS rescore
  60. 2026-06-28 04:56 UTCEPSS rescore
  61. 2026-06-28 03:54 UTCGHSA enrichment
  62. 2026-06-27 15:52 UTCGHSA enrichment
  63. 2026-06-27 03:50 UTCGHSA enrichment
  64. 2026-06-27 03:08 UTCEPSS rescore
  65. 2026-06-26 15:48 UTCGHSA enrichment
  66. 2026-06-26 03:47 UTCGHSA enrichment
  67. 2026-06-25 15:46 UTCEG score recompute
  68. 2026-06-25 15:46 UTCGHSA enrichment

Related CVEs(same CWE)

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 0% probability of exploitation in the next 30 days, which ranks it in the top 69.4% of all scored CVEs.
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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