SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-17553

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…

EXPLOIT ✓HIGH 8.8EPSS 79.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 79.0%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

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 3.0
8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
78.99% probability · 100th percentile
Public exploits
1 in Exploit-DB · verified · first 8 October 2018
CISA KEV
Not listed
Weakness
CWE-22, CWE-434
Affected
naviwebs/navigate cms
Source
cve@mitre.org
EPSS trend
0%40%80%21 September 2026: 74.76%22 September 2026: 78.99%27 October 2026: 78.99%21 September 202627 October 2026

EPSS moved from 74.8% on 21 September 2026 to 79.0% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-45561source ↗Navigate CMS - (Unauthenticated) Remote Code Execution (Metasploit)php · Metasploitremote8 October 2018yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.