CVE-2026-78257

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. 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.

Contributor PHP Object Injection in Booking and Rental Manager <= 2.7.5 versions.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

PHP Object Injection in WordPress Booking and Rental Manager Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/booking-and-rental-manager-for-woocommerce/vulnerability/wordpress-booking-and-rental-manager-plugin-2-7-5-php-object-injection-vulnerability?_s_id=cve

Vendor Advisories for CVE-2026-78257(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 25× in last 7d / 100× 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. 2026-09-20 23:23 UTCEG score recompute
  2. 2026-09-20 23:23 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 10:42 UTCGHSA enrichment
  5. 2026-09-19 22:25 UTCEG score recompute
  6. 2026-09-19 22:25 UTCGHSA enrichment
  7. 2026-09-19 10:02 UTCGHSA enrichment
  8. 2026-09-18 21:30 UTCEG score recompute
  9. 2026-09-18 21:30 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 09:11 UTCGHSA enrichment
  12. 2026-09-17 20:55 UTCEG score recompute
  13. 2026-09-17 20:55 UTCGHSA enrichment
  14. 2026-09-17 07:22 UTCGHSA enrichment
  15. 2026-09-16 19:04 UTCEG score recompute
  16. 2026-09-16 19:04 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-16 04:33 UTCGHSA enrichment
  20. 2026-09-15 16:08 UTCGHSA enrichment
  21. 2026-09-15 03:52 UTCEG score recompute
  22. 2026-09-15 03:52 UTCGHSA enrichment
  23. 2026-09-15 03:12 UTCEPSS rescore
  24. 2026-09-15 03:12 UTCEPSS rescore
  25. 2026-09-14 15:36 UTCGHSA enrichment
Show 75 more
  1. 2026-09-14 03:20 UTCEG score recompute
  2. 2026-09-14 03:20 UTCGHSA enrichment
  3. 2026-09-13 15:05 UTCGHSA enrichment
  4. 2026-09-13 02:50 UTCEG score recompute
  5. 2026-09-13 02:50 UTCGHSA enrichment
  6. 2026-09-12 14:34 UTCGHSA enrichment
  7. 2026-09-12 02:18 UTCEG score recompute
  8. 2026-09-12 02:18 UTCGHSA enrichment
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 14:02 UTCEG score recompute
  12. 2026-09-11 14:02 UTCGHSA enrichment
  13. 2026-09-11 01:46 UTCGHSA enrichment
  14. 2026-09-10 13:30 UTCEG score recompute
  15. 2026-09-10 13:30 UTCGHSA enrichment
  16. 2026-09-10 09:35 UTCEPSS rescore
  17. 2026-09-10 01:14 UTCGHSA enrichment
  18. 2026-09-09 12:58 UTCGHSA enrichment
  19. 2026-09-09 00:43 UTCEG score recompute
  20. 2026-09-09 00:43 UTCGHSA enrichment
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-08 11:45 UTCGHSA enrichment
  23. 2026-09-07 23:28 UTCEG score recompute
  24. 2026-09-07 23:28 UTCGHSA enrichment
  25. 2026-09-07 11:12 UTCGHSA enrichment
  26. 2026-09-06 22:54 UTCEG score recompute
  27. 2026-09-06 22:54 UTCGHSA enrichment
  28. 2026-09-06 13:48 UTCEPSS rescore
  29. 2026-09-06 10:36 UTCGHSA enrichment
  30. 2026-09-05 22:20 UTCEG score recompute
  31. 2026-09-05 22:20 UTCGHSA enrichment
  32. 2026-09-05 10:05 UTCGHSA enrichment
  33. 2026-09-04 21:46 UTCEG score recompute
  34. 2026-09-04 21:45 UTCGHSA enrichment
  35. 2026-09-04 09:22 UTCEG score recompute
  36. 2026-09-04 09:22 UTCGHSA enrichment
  37. 2026-09-04 05:07 UTCEPSS rescore
  38. 2026-09-03 21:03 UTCGHSA enrichment
  39. 2026-09-03 08:47 UTCGHSA enrichment
  40. 2026-09-02 20:31 UTCEG score recompute
  41. 2026-09-02 20:31 UTCGHSA enrichment
  42. 2026-09-02 14:12 UTCEPSS rescore
  43. 2026-09-02 06:05 UTCGHSA enrichment
  44. 2026-09-01 17:49 UTCEG score recompute
  45. 2026-09-01 17:49 UTCGHSA enrichment
  46. 2026-09-01 13:54 UTCEPSS rescore
  47. 2026-09-01 05:33 UTCEG score recompute
  48. 2026-09-01 05:32 UTCGHSA enrichment
  49. 2026-09-01 04:40 UTCEPSS rescore
  50. 2026-09-01 04:40 UTCEPSS rescore
  51. 2026-08-31 17:14 UTCGHSA enrichment
  52. 2026-08-31 04:44 UTCEG score recompute
  53. 2026-08-31 04:44 UTCGHSA enrichment
  54. 2026-08-30 19:18 UTCEPSS rescore
  55. 2026-08-30 19:17 UTCEPSS rescore
  56. 2026-08-30 16:28 UTCGHSA enrichment
  57. 2026-08-30 04:12 UTCEG score recompute
  58. 2026-08-30 04:12 UTCGHSA enrichment
  59. 2026-08-30 01:22 UTCEPSS rescore
  60. 2026-08-29 15:56 UTCGHSA enrichment
  61. 2026-08-29 03:40 UTCEG score recompute
  62. 2026-08-29 03:40 UTCGHSA enrichment
  63. 2026-08-28 21:42 UTCEPSS rescore
  64. 2026-08-28 15:22 UTCGHSA enrichment
  65. 2026-08-28 14:09 UTCGHSA enrichment
  66. 2026-08-28 01:48 UTCEG score recompute
  67. 2026-08-28 01:48 UTCGHSA enrichment
  68. 2026-08-27 14:25 UTCEPSS rescore
  69. 2026-08-27 13:33 UTCEG score recompute
  70. 2026-08-27 13:33 UTCGHSA enrichment
  71. 2026-08-27 12:59 UTCEG score recompute
  72. 2026-08-27 12:59 UTCGHSA enrichment
  73. 2026-08-27 10:26 UTCEG score recompute
  74. 2026-08-27 09:24 UTCEG score recompute
  75. 2026-08-27 09:23 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78257?
CVE-2026-78257 is a high vulnerability published on August 27, 2026. Contributor PHP Object Injection in Booking and Rental Manager <= 2.7.5 versions.
When was CVE-2026-78257 disclosed?
CVE-2026-78257 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78257 actively exploited?
CVE-2026-78257 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 59.3% of all scored CVEs.
What is the CVSS score of CVE-2026-78257?
CVE-2026-78257 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-78257?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78257, 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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