CVE-2026-15248

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH 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%CVSS: 5.5Exploit: Elevated riskExposed: 0

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

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
5.5(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity55% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 2, 2026

Last Modified

August 5, 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 21× in last 7d / 58× 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. 2026-08-20 21:42 UTCGHSA enrichment
  2. 2026-08-19 22:56 UTCEG score recompute
  3. 2026-08-19 22:56 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 00:10 UTCEG score recompute
  6. 2026-08-19 00:10 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 01:24 UTCEG score recompute
  9. 2026-08-18 01:23 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 02:38 UTCEG score recompute
  12. 2026-08-17 02:38 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 03:52 UTCEG score recompute
  15. 2026-08-16 03:52 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 05:07 UTCEG score recompute
  18. 2026-08-15 05:07 UTCGHSA enrichment
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 06:21 UTCEG score recompute
  21. 2026-08-14 06:21 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 07:36 UTCEG score recompute
  24. 2026-08-13 07:36 UTCGHSA enrichment
  25. 2026-08-12 13:50 UTCEPSS rescore
Show 33 more
  1. 2026-08-12 08:50 UTCEG score recompute
  2. 2026-08-12 08:50 UTCGHSA enrichment
  3. 2026-08-11 13:42 UTCEPSS rescore
  4. 2026-08-11 10:05 UTCEG score recompute
  5. 2026-08-11 10:05 UTCGHSA enrichment
  6. 2026-08-11 00:00 UTCEPSS rescore
  7. 2026-08-10 11:18 UTCEG score recompute
  8. 2026-08-10 11:18 UTCGHSA enrichment
  9. 2026-08-09 13:46 UTCEPSS rescore
  10. 2026-08-09 12:33 UTCEG score recompute
  11. 2026-08-09 12:33 UTCGHSA enrichment
  12. 2026-08-08 16:37 UTCEPSS rescore
  13. 2026-08-08 13:47 UTCEG score recompute
  14. 2026-08-08 13:47 UTCGHSA enrichment
  15. 2026-08-07 15:01 UTCGHSA enrichment
  16. 2026-08-06 16:16 UTCEG score recompute
  17. 2026-08-06 16:16 UTCGHSA enrichment
  18. 2026-08-06 13:46 UTCEPSS rescore
  19. 2026-08-05 19:17 UTCEPSS rescore
  20. 2026-08-05 17:30 UTCEG score recompute
  21. 2026-08-05 17:30 UTCGHSA enrichment
  22. 2026-08-05 16:52 UTCEG score recompute▲ 5.50
  23. 2026-08-05 16:52 UTCGHSA enrichment
  24. 2026-08-05 16:50 UTCMITRE cvelistV5CVSS v3 → 5.5 · severity → MEDIUM
  25. 2026-08-05 07:43 UTCEG score recompute
  26. 2026-08-05 07:43 UTCGHSA enrichment
  27. 2026-08-04 15:10 UTCEPSS rescore
  28. 2026-08-04 10:38 UTCEPSS rescore
  29. 2026-08-03 10:35 UTCEPSS rescore
  30. 2026-08-02 06:36 UTCGHSA enrichment
  31. 2026-08-02 06:35 UTCNVD update
  32. 2026-08-02 06:07 UTCEG score recompute
  33. 2026-08-02 06:04 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database on August 2, 2026, with the most recent update on August 5, 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% probability of exploitation in the next 30 days, which ranks it in the top 79.4% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15248, 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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