CVE-2018-17553

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 79% probability of exploitation within the next 30 days (top 0.4% of all CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekWeaponized
8.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 79%
CISA-KEV: Not listedEPSS: 79%CVSS: 8.8Exploit: NoneExposed: 0

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

An "Unrestricted Upload of File with Dangerous Type" issue with directory traversal in navigate_upload.php in Naviwebs Navigate CMS 2.8 allows authenticated attackers to achieve remote code execution via a POST request with engine=picnik and id=../../../navigate_info.php.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
77(Track)
EG Risk 77/100SSVC: 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
Severity90% × 45%
Exploitation79% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.6%
KEV
Not listed

Published

October 3, 2018

Last Modified

November 21, 2024

References (6)

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 24× 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. 2026-07-23 01:34 UTCEG score recompute▲ 0.20
  2. 2026-07-22 22:14 UTCEG score recompute
  3. 2026-07-22 14:04 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
  5. 2026-07-21 04:48 UTCOSV refresh
  6. 2026-07-19 02:26 UTCEPSS rescore
  7. 2026-07-19 02:26 UTCEPSS rescore
  8. 2026-07-15 16:55 UTCEPSS rescore
  9. 2026-07-13 06:10 UTCEPSS rescore
  10. 2026-07-11 08:24 UTCEPSS rescore
  11. 2026-07-06 16:24 UTCEPSS rescore
  12. 2026-07-06 16:24 UTCEPSS rescore
  13. 2026-07-04 06:28 UTCEPSS rescore
  14. 2026-07-04 00:26 UTCOSV refresh
  15. 2026-07-01 15:03 UTCEPSS rescore
  16. 2026-07-01 15:03 UTCEPSS rescore
  17. 2026-06-28 14:04 UTCEPSS rescore
  18. 2026-06-28 04:53 UTCEPSS rescore
  19. 2026-06-28 04:53 UTCEPSS rescore
  20. 2026-06-25 13:47 UTCEPSS rescore
  21. 2026-06-25 13:47 UTCEPSS rescore
  22. 2026-06-24 14:02 UTCEPSS rescore
  23. 2026-06-24 14:02 UTCEPSS rescore
  24. 2026-06-23 21:30 UTCEPSS rescore
  25. 2026-06-21 14:54 UTCEPSS rescore
Show 39 more
  1. 2026-06-21 14:54 UTCEPSS rescore
  2. 2026-06-21 01:57 UTCEPSS rescore
  3. 2026-06-21 01:57 UTCEPSS rescore
  4. 2026-06-18 17:50 UTCEPSS rescore
  5. 2026-06-18 17:50 UTCEPSS rescore
  6. 2026-06-17 17:50 UTCEPSS rescore
  7. 2026-06-17 17:50 UTCEPSS rescore
  8. 2026-06-15 17:45 UTCEPSS rescore
  9. 2026-06-15 12:13 UTCOSV refresh
  10. 2026-06-12 23:09 UTCEPSS rescore
  11. 2026-06-10 22:16 UTCEPSS rescore
  12. 2026-06-10 13:19 UTCEPSS rescore
  13. 2026-06-08 14:14 UTCEPSS rescore
  14. 2026-06-08 14:14 UTCEPSS rescore
  15. 2026-06-07 15:22 UTCEPSS rescore
  16. 2026-06-07 15:22 UTCEPSS rescore
  17. 2026-06-06 13:45 UTCEPSS rescore
  18. 2026-06-06 13:45 UTCEPSS rescore
  19. 2026-06-05 22:45 UTCEPSS rescore
  20. 2026-06-05 22:44 UTCEPSS rescore
  21. 2026-06-05 06:08 UTCEPSS rescore
  22. 2026-06-05 06:08 UTCEPSS rescore
  23. 2026-06-02 20:11 UTCEPSS rescore
  24. 2026-06-02 20:11 UTCEPSS rescore
  25. 2026-06-01 13:49 UTCEPSS rescore
  26. 2026-05-31 22:29 UTCEPSS rescore
  27. 2026-05-31 22:28 UTCEPSS rescore
  28. 2026-05-31 00:14 UTCEPSS rescore
  29. 2026-05-31 00:14 UTCEPSS rescore
  30. 2026-05-28 13:42 UTCEPSS rescore
  31. 2026-05-28 13:42 UTCEPSS rescore
  32. 2026-05-28 02:33 UTCEG score recompute
  33. 2026-05-28 02:33 UTCGHSA enrichment
  34. 2026-05-27 13:38 UTCEPSS rescore
  35. 2026-05-27 13:38 UTCEPSS rescore
  36. 2026-05-26 13:42 UTCEPSS rescore
  37. 2026-05-26 13:42 UTCEPSS rescore
  38. 2026-05-26 07:17 UTCEPSS rescore
  39. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-45561✓ verified
    First seen Oct 8, 2018

    Navigate CMS - (Unauthenticated) Remote Code Execution (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/http/navigate_cms_rce✓ verified
    First seen Sep 26, 2018

    Navigate CMS Unauthenticated Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-17553?
CVE-2018-17553 is a high vulnerability published on October 3, 2018. An "Unrestricted Upload of File with Dangerous Type" issue with directory traversal in navigateupload.php in Naviwebs Navigate CMS 2.8 allows authenticated attackers to achieve remote code execution via a POST request with engine=picnik and id=../../../navigateinfo.php.
When was CVE-2018-17553 disclosed?
CVE-2018-17553 was first published in the National Vulnerability Database on October 3, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-17553 actively exploited?
CVE-2018-17553 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-17553?
CVE-2018-17553 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2018-17553?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-17553, 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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