CVE-2026-45247

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-06-03), indicating real-world exploitation has been confirmed by US federal agencies. a secondary CVSS source baseline 9.8 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, secondary
Trending — 4 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 28%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

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

Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie. Attackers can exploit the unrestricted call to PHP's native unserialize() function combined with gadget chains available in Magento and its dependencies to execute arbitrary code on the server.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
28%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

May 26, 2026

Last Modified

July 24, 2026

Advisory Details (5)

Auto-updated Jul 24, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
generic

Imperva Customers Protected Against CVE-2026-45247 in Mirasvit Full Page Cache Warmer for Magento | Imperva

https://www.imperva.com/blog/imperva-customers-protected-against-cve-2026-45247-in-mirasvit-full-page-cache-warmer-for-magento/
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-45247
generic

Mirasvit Cache Warmer for Magento < 1.11.12 PHP Object Injection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/mirasvit-cache-warmer-for-magento-php-object-injection
generic

Critical vulnerability in Mirasvit Cache Warmer for Magento | Sansec

https://sansec.io/research/mirasvit-cache-warmer-object-injection
generic

Full Page Cache Warmer for Magento 2 — What's New - Mirasvit Magento Extensions

https://mirasvit.com/package/changelog/?package=mirasvit/module-cache-warmer

Vendor Advisories for CVE-2026-45247(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 40× in last 7d / 215× 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.

Showing the most recent 100 of 456 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2026-45247?
CVE-2026-45247 is a critical vulnerability published on May 26, 2026. Mirasvit Full Page Cache Warmer for Magento 2 before version 1.11.12 contains a PHP object injection vulnerability that allows unauthenticated attackers to achieve remote code execution by supplying a crafted serialized PHP object in the CacheWarmer cookie. Attackers can exploit the unrestricted…
When was CVE-2026-45247 disclosed?
CVE-2026-45247 was first published in the National Vulnerability Database on May 26, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45247 actively exploited?
Yes. CISA added CVE-2026-45247 to the Known Exploited Vulnerabilities catalog on June 3, 2026, affecting Mirasvit Mirasvit Full Page Cache Warmer. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-45247?
CVE-2026-45247 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2026-45247?
CVE-2026-45247 affects Mirasvit Mirasvit Full Page Cache Warmer. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-45247?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45247, 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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