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Vulnerability details: VCID-wx2g-5edr-jubd
Vulnerability ID VCID-wx2g-5edr-jubd
Aliases CVE-2018-5776
Summary WordPress before 4.9.2 has XSS in the Flash fallback files in MediaElement (under wp-includes/js/mediaelement).
Status Published
Exploitability 0.5
Weighted Severity 5.5
Risk 2.8
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
System Score Found at
epss 0.01843 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.01843 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.01843 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
epss 0.0242 https://api.first.org/data/v1/epss?cve=CVE-2018-5776
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-5776
cvssv3 6.1 https://nvd.nist.gov/vuln/detail/CVE-2018-5776
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2018-5776
https://codex.wordpress.org/Version_4.9.2
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5776
https://github.com/WordPress/WordPress/commit/3fe9cb61ee71fcfadb5e002399296fcc1198d850
https://wordpress.org/news/2018/01/wordpress-4-9-2-security-and-maintenance-release/
https://wpvulndb.com/vulnerabilities/9006
887596 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=887596
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-2018-5776 https://nvd.nist.gov/vuln/detail/CVE-2018-5776
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-5776
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:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-5776
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 0.82305
EPSS Score 0.01843
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T12:04:45.271498+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 37.0.0