CVE-2026-18933

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. 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: 0%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 wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release line), allows an admin-privileged user (current_user_can('manage_downloads')) to upload arbitrary files via download-add.php with no extension or MIME-type validation of any kind - no wp_check_filetype_and_ext, no validate_file, and no extension blocklist exist anywhere in the upload handler.

CVSS v3
7.2
EG Score
7.2(high)
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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

WP-DownloadManager – WordPress plugin | WordPress.org

https://wordpress.org/plugins/wp-downloadmanager/#description

Vendor Advisories for CVE-2026-18933(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 27× in last 7d / 70× 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 22:55 UTCEPSS rescore
  2. 2026-08-20 22:10 UTCGHSA enrichment
  3. 2026-08-20 10:06 UTCGHSA enrichment
  4. 2026-08-19 22:13 UTCEG score recompute
  5. 2026-08-19 22:13 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 10:17 UTCGHSA enrichment
  8. 2026-08-18 22:24 UTCEG score recompute
  9. 2026-08-18 22:24 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 10:32 UTCGHSA enrichment
  12. 2026-08-17 22:38 UTCEG score recompute
  13. 2026-08-17 22:38 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 10:45 UTCGHSA enrichment
  16. 2026-08-16 22:53 UTCEG score recompute
  17. 2026-08-16 22:53 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 10:59 UTCEG score recompute
  20. 2026-08-16 10:59 UTCGHSA enrichment
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-15 23:07 UTCGHSA enrichment
  23. 2026-08-15 11:14 UTCEG score recompute
  24. 2026-08-15 11:14 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
Show 45 more
  1. 2026-08-14 23:20 UTCGHSA enrichment
  2. 2026-08-14 11:27 UTCGHSA enrichment
  3. 2026-08-13 23:35 UTCEG score recompute
  4. 2026-08-13 23:35 UTCGHSA enrichment
  5. 2026-08-13 22:00 UTCEPSS rescore
  6. 2026-08-13 11:41 UTCGHSA enrichment
  7. 2026-08-12 23:49 UTCEG score recompute
  8. 2026-08-12 23:49 UTCGHSA enrichment
  9. 2026-08-12 13:50 UTCEPSS rescore
  10. 2026-08-12 11:56 UTCGHSA enrichment
  11. 2026-08-12 00:03 UTCEG score recompute
  12. 2026-08-12 00:03 UTCGHSA enrichment
  13. 2026-08-11 13:42 UTCEPSS rescore
  14. 2026-08-11 12:10 UTCGHSA enrichment
  15. 2026-08-11 00:17 UTCEG score recompute
  16. 2026-08-11 00:17 UTCGHSA enrichment
  17. 2026-08-11 00:00 UTCEPSS rescore
  18. 2026-08-10 12:24 UTCEG score recompute
  19. 2026-08-10 12:24 UTCGHSA enrichment
  20. 2026-08-10 12:02 UTCGHSA enrichment
  21. 2026-08-10 11:22 UTCEG score recompute
  22. 2026-08-10 11:22 UTCGHSA enrichment
  23. 2026-08-10 00:24 UTCEG score recompute
  24. 2026-08-10 00:24 UTCGHSA enrichment
  25. 2026-08-09 13:46 UTCEPSS rescore
  26. 2026-08-09 12:32 UTCGHSA enrichment
  27. 2026-08-09 00:39 UTCEG score recompute
  28. 2026-08-09 00:39 UTCGHSA enrichment
  29. 2026-08-08 16:37 UTCEPSS rescore
  30. 2026-08-08 12:46 UTCGHSA enrichment
  31. 2026-08-08 00:53 UTCEG score recompute
  32. 2026-08-08 00:53 UTCGHSA enrichment
  33. 2026-08-07 13:00 UTCGHSA enrichment
  34. 2026-08-07 01:07 UTCEG score recompute
  35. 2026-08-07 01:07 UTCGHSA enrichment
  36. 2026-08-06 13:46 UTCEPSS rescore
  37. 2026-08-06 13:14 UTCGHSA enrichment
  38. 2026-08-06 01:21 UTCGHSA enrichment
  39. 2026-08-05 13:28 UTCEG score recompute
  40. 2026-08-05 13:28 UTCGHSA enrichment
  41. 2026-08-05 13:08 UTCEG score recompute
  42. 2026-08-05 13:08 UTCGHSA enrichment
  43. 2026-08-05 12:25 UTCEG score recompute
  44. 2026-08-05 11:47 UTCEG score recompute
  45. 2026-08-05 11:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-18933?
CVE-2026-18933 is a high vulnerability published on August 5, 2026. The wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release line), allows an admin-privileged user (currentusercan('managedownloads')) to upload arbitrary files via download-add.php with no extension or MIME-type validation of any kind - no wpcheckfiletypeandext,…
When was CVE-2026-18933 disclosed?
CVE-2026-18933 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18933 actively exploited?
CVE-2026-18933 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 79.7% of all scored CVEs.
What is the CVSS score of CVE-2026-18933?
CVE-2026-18933 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2026-18933?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18933, 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

Explore the affected products and dependency analysis for CVE-2026-18933

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