CVE-2026-12256

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.8Exploit: None knownExposed services: Not assessed

Update the WordPress Fusion Builder plugin to the latest available version (at least 3.15.4) (from the CVE record's solution, Patchstack) — apply it.

Deserialization of Untrusted Data vulnerability in ThemeFusion Fusion Builder fusion-builder allows Object Injection.This issue affects Fusion Builder: from n/a through 3.15.3.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

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 (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: Update the WordPress Fusion Builder plugin to the latest available version (at least 3.15.4) (from the CVE record's solution, Patchstack). Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

Update the WordPress Fusion Builder plugin to the latest available version (at least 3.15.4) (from the CVE record's solution, Patchstack). Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 17, 2026

Last Modified

October 1, 2026

Advisory Details (1)

Auto-updated Jun 18, 2026
Fix named in the CVE record's solution (Patchstack).
Web page

PHP Object Injection in WordPress Avada Theme - Patchstack

https://patchstack.com/database/wordpress/theme/avada/vulnerability/wordpress-avada-theme-3-15-3-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-12256(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 10× in last 7d / 29× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 252 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 152 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 20:12 UTCEG score recompute
  2. 2026-10-11 18:24 UTCEG score recompute
  3. 2026-10-11 14:58 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  5. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  10. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-10-01 17:28 UTCEG score recompute
  15. 2026-10-01 17:28 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-01 17:01 UTCEG score recompute
  17. 2026-10-01 17:01 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  19. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  20. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  21. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  24. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.5% · 39th percentile
Show 75 more
  1. 2026-09-14 03:17 UTCEG score recompute
  2. 2026-09-14 03:17 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  3. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  4. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  6. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  7. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  10. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-08-30 22:31 UTCEG score recompute
  16. 2026-08-30 22:30 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  17. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  18. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  19. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  20. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  21. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-08-24 22:31 UTCEG score recompute
  23. 2026-08-24 22:31 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  24. 2026-08-23 21:10 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  25. 2026-08-23 08:58 UTCEG score recompute
  26. 2026-08-23 08:58 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  27. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  28. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  29. 2026-08-21 22:32 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  30. 2026-08-21 09:42 UTCEG score recompute
  31. 2026-08-21 09:42 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  32. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  33. 2026-08-20 20:45 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  34. 2026-08-20 08:24 UTCEG score recompute
  35. 2026-08-20 08:24 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  36. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  37. 2026-08-19 08:18 UTCEG score recompute
  38. 2026-08-19 08:18 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  39. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  40. 2026-08-17 14:04 UTCEG score recompute
  41. 2026-08-17 14:04 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  42. 2026-08-17 01:53 UTCEG score recompute
  43. 2026-08-17 01:53 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  44. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  45. 2026-08-16 13:41 UTCEG score recompute
  46. 2026-08-16 13:41 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  47. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  48. 2026-08-16 01:24 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  49. 2026-08-15 13:12 UTCEG score recompute
  50. 2026-08-15 13:12 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  51. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  52. 2026-08-15 00:59 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  53. 2026-08-14 12:48 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  54. 2026-08-14 00:36 UTCEG score recompute
  55. 2026-08-14 00:36 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  56. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  57. 2026-08-13 12:24 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  58. 2026-08-13 00:13 UTCEG score recompute
  59. 2026-08-13 00:13 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  60. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  61. 2026-08-12 12:01 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  62. 2026-08-11 23:49 UTCEG score recompute
  63. 2026-08-11 23:49 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  64. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  65. 2026-08-11 11:37 UTCEG score recompute
  66. 2026-08-11 11:37 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  67. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  68. 2026-08-10 23:25 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  69. 2026-08-10 11:13 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  70. 2026-08-09 23:00 UTCEG score recompute
  71. 2026-08-09 23:00 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  72. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  73. 2026-08-09 10:49 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8
  74. 2026-08-08 22:37 UTCEG score recompute
  75. 2026-08-08 22:37 UTCGHSA enrichmentGHSA-5fx4-xh92-6xqm · GitHub severity HIGH · GitHub CVSS 8.8

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12256?
CVE-2026-12256 is a high-severity vulnerability; its CVE record was published on June 17, 2026. Deserialization of Untrusted Data vulnerability in ThemeFusion Fusion Builder fusion-builder allows Object Injection.This issue affects Fusion Builder: from n/a through 3.15.3.
When was CVE-2026-12256 made public?
CVE-2026-12256 was made public on June 15, 2026: that is the date its CVE record's CNA, Patchstack, gives for when the vulnerability was made public. The CVE record itself was published on June 17, 2026. EchelonGraph's copy of the record carries a last-modified date of October 1, 2026; the record at its source may have been updated since.
Is CVE-2026-12256 actively exploited?
CVE-2026-12256 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-12256?
CVE-2026-12256 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-12256?
The CVE record's solution for CVE-2026-12256, written by its CNA Patchstack, names the fix: "Update the WordPress Fusion Builder plugin to the latest available version (at least 3.15.4)." The vendor advisories EchelonGraph has for CVE-2026-12256 are linked in the Vendor Advisories panel on this page.

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