CVE-2026-16601

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 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: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

The CM Map Locations – Visualize and share your locations in a few clicks plugin for WordPress is vulnerable to Limited Arbitrary File Upload in all versions up to, and including, 2.1.8 via the uploadMedia function. This is due to insufficient file type validation in the upload handler, which performs incomplete extension filtering without MIME-type checks or upload capability verification before passing attacker-supplied files to move_uploaded_file(). This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. The required nonce is exposed to any logged-in Subscriber via the CMLOC_Editor_Images JavaScript object on the front-end location editor page.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
55(Track)
EG Risk 55/100SSVC: 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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

References (9)

Vendor Advisories for CVE-2026-16601(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 / 21× 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. 2026-08-29 06:24 UTCEG score recompute
  2. 2026-08-29 06:24 UTCGHSA enrichment
  3. 2026-08-28 21:41 UTCEPSS rescore
  4. 2026-08-28 18:05 UTCGHSA enrichment
  5. 2026-08-28 05:41 UTCGHSA enrichment
  6. 2026-08-27 17:20 UTCEG score recompute
  7. 2026-08-27 17:20 UTCGHSA enrichment
  8. 2026-08-27 17:14 UTCEG score recompute
  9. 2026-08-27 17:14 UTCGHSA enrichment
  10. 2026-08-27 14:25 UTCEPSS rescore
  11. 2026-08-27 05:04 UTCGHSA enrichment
  12. 2026-08-26 16:44 UTCEG score recompute
  13. 2026-08-26 16:44 UTCGHSA enrichment
  14. 2026-08-26 14:46 UTCEPSS rescore
  15. 2026-08-26 09:04 UTCGHSA enrichment
  16. 2026-08-25 20:42 UTCEG score recompute
  17. 2026-08-25 20:42 UTCGHSA enrichment
  18. 2026-08-25 13:48 UTCEPSS rescore
  19. 2026-08-25 08:23 UTCEG score recompute
  20. 2026-08-25 07:57 UTCEG score recompute
  21. 2026-08-25 07:56 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16601?
CVE-2026-16601 is a high vulnerability published on August 25, 2026. The CM Map Locations – Visualize and share your locations in a few clicks plugin for WordPress is vulnerable to Limited Arbitrary File Upload in all versions up to, and including, 2.1.8 via the uploadMedia function. This is due to insufficient file type validation in the upload handler, which…
When was CVE-2026-16601 disclosed?
CVE-2026-16601 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16601 actively exploited?
CVE-2026-16601 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 52.7% of all scored CVEs.
What is the CVSS score of CVE-2026-16601?
CVE-2026-16601 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-16601?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16601, 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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