CVE-2026-13430

HIGHPre-NVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-07-10. a secondary CVSS source baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.2Exploit: None knownExposed: 0

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

The Post Export Import with Media plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.13.1 via the import_media_file_secure function. This is due to insufficient file extension validation caused by a trailing-dot filename bypass, where the extension allow-list check in ajax_import_media_start() uses pathinfo() on the raw ZIP entry name (e.g., 'shell.php.'), which returns an empty string for the extension, causing the allow-list guard to be skipped and the file to be extracted to a temporary location, after which import_media_file_secure() copies it into the WordPress uploads directory without re-validating the extension. This makes it possible for authenticated attackers, with administrator-level access and above, to upload files that may be executable, which makes remote code execution possible.

CVSS v3
7.2
EG Score
7.2(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity72% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
64%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 10, 2026

References (7)

Vendor Advisories for CVE-2026-13430(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 17× in last 7d / 106× 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 158 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13430?
CVE-2026-13430 is a high vulnerability published on July 10, 2026. The Post Export Import with Media plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.13.1 via the importmediafilesecure function. This is due to insufficient file extension validation caused by a trailing-dot filename bypass, where the extension…
When was CVE-2026-13430 disclosed?
CVE-2026-13430 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13430 actively exploited?
CVE-2026-13430 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 35.9% of all scored CVEs.
What is the CVSS score of CVE-2026-13430?
CVE-2026-13430 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-13430?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13430, 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.

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