CVE-2026-15248

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.5Exploit: Elevated riskExposed services: Not assessed

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

The Meta Box WordPress plugin before 5.13.1 does not verify that a user is authorized to delete the supplied attachment before deleting it, allowing users with a low-privilege role such as Contributor to permanently delete arbitrary media attachments belonging to other users.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
41
EG Risk 41/100CISA SSVC

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
Severity55% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
29th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 2, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Meta Box < 5.13.1 – Contributor+ Arbitrary Attachment Deletion via IDOR | CVE 2026-15248 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/a101136d-606f-4529-ae78-a4fff7724e2c/

Vendor Advisories for CVE-2026-15248(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 14× 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.

Showing the most recent 100 of 163 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15248?
CVE-2026-15248 is a medium vulnerability published on August 2, 2026. The Meta Box WordPress plugin before 5.13.1 does not verify that a user is authorized to delete the supplied attachment before deleting it, allowing users with a low-privilege role such as Contributor to permanently delete arbitrary media attachments belonging to other users.
When was CVE-2026-15248 disclosed?
CVE-2026-15248 was first published on August 2, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15248 actively exploited?
CVE-2026-15248 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15248?
CVE-2026-15248 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15248?
No fix for CVE-2026-15248 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-15248 are linked in the Vendor Advisories panel on this page.

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