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FV Flowplayer Video Player EUVD-2026-35292

| CVE-2026-7556 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-06-09 security@wordfence.com GHSA-qpcq-fxp5-fvp9
7.2
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.2 HIGH
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Jun 09, 2026 - 03:32 vuln.today
CVE Published
Jun 09, 2026 - 03:16 nvd
HIGH 7.2

DescriptionCVE.org

The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the comment text in all versions up to, and including, 7.5.49.7212 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires an administrator to have enabled the non-default 'Parse Vimeo and YouTube links' (parse_comments) plugin setting, and requires a submitted comment to be approved by an administrator before the payload is publicly delivered.

AnalysisAI

Stored cross-site scripting in the FV Flowplayer Video Player WordPress plugin (versions through 7.5.49.7212) allows remote attackers to inject persistent JavaScript via the comment text field, which executes in any visitor's browser when the affected page is loaded. The flaw stems from insufficient input sanitization and output escaping in the comment-parsing routine and is reachable only when the non-default 'Parse Vimeo and YouTube links' (parse_comments) option is enabled and an administrator approves the malicious comment. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify WordPress site running vulnerable FV Flowplayer with parse_comments enabled
Delivery
Submit comment containing crafted Vimeo/YouTube-style XSS payload
Exploit
Wait for administrator to approve comment
Execution
Plugin renders unsanitized payload into public page
Persist
Visitor (or admin) browser executes injected script
Impact
Steal session cookies or perform actions as logged-in admin

Vulnerability AssessmentAI

Exploitation Two specific conditions must both hold: (1) the site administrator must have enabled the non-default 'Parse Vimeo and YouTube links' setting (parse_comments) in the FV Flowplayer Video Player plugin, and (2) an administrator must manually approve the attacker's malicious comment before it is rendered to visitors. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N, base 7.2) reflects network-reachable, unauthenticated submission with no user interaction and a changed scope (typical of stored XSS that affects other users' browser sessions), but the impact is bounded to low confidentiality/integrity and no availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker submits a comment containing a crafted payload disguised as a Vimeo or YouTube link on a post belonging to a WordPress site that uses the FV Flowplayer Video Player plugin with parse_comments enabled. A site administrator, seeing what looks like a normal video-link comment, approves it; the plugin then renders the unsanitized content into the public page, and the injected JavaScript executes in every visitor's browser - including any logged-in admin who later views the page - enabling session hijacking, forced admin actions via CSRF, or redirection to attacker infrastructure.
Remediation Upgrade the FV Flowplayer Video Player plugin to a release later than 7.5.49.7212; the Trac changeset referenced in the advisory (https://plugins.trac.wordpress.org/changeset?new=3522496%40fv-wordpress-flowplayer%2Ftrunk&old=3478883%40fv-wordpress-flowplayer%2Ftrunk) shows the upstream fix, but a specific tagged patched version is not independently confirmed from the supplied data, so verify the latest version on the WordPress.org plugin page before upgrading. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

24 hours: Verify plugin installation and check whether 'Parse Vimeo and YouTube links' setting is enabled; review recent comment activity for suspicious content. …

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EUVD-2026-35292 vulnerability details – vuln.today

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