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Vulnerability details: VCID-66d7-qggh-t3d8
Vulnerability ID VCID-66d7-qggh-t3d8
Aliases CVE-2017-1000600
Summary WordPress version <4.9 contains a CWE-20 Input Validation vulnerability in thumbnail processing that can result in remote code execution. This attack appears to be exploitable via thumbnail upload by an authenticated user and may require additional plugins in order to be exploited however this has not been confirmed at this time. This issue appears to have been partially, but not completely fixed in WordPress 4.9
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
epss 0.18116 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18198 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18752 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18752 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18752 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18752 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18752 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18752 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
epss 0.18752 https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
cvssv2 6.5 https://nvd.nist.gov/vuln/detail/CVE-2017-1000600
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2017-1000600
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-1000600
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000600
https://www.theregister.co.uk/2018/08/20/php_unserialisation_wordpress_vuln/
https://youtu.be/GePBmsNJw6Y?t=1763
http://www.securityfocus.com/bid/105305
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
CVE-2017-1000600 https://nvd.nist.gov/vuln/detail/CVE-2017-1000600
No exploits are available.
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2017-1000600
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-1000600
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.94958
EPSS Score 0.18116
Published At Sept. 25, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T11:56:36.684774+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 37.0.0