CVE-2022-25613

FV Flowplayer Video Player <= 7.5.18.727 - Stored Cross-Site Scripting

2022-04-04 05:25

Strategic Overview

Status: Patched in 7.5.19.728
Affected Plugin: FV Flowplayer Video Player
Affected Version: <= 7.5.18.727
CVSS: 6.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2022-25613

View all FV Flowplayer Video Player vulnerabilities

At a glance

CVE-2022-25613 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the FV Flowplayer Video Player WordPress plugin, affecting versions <= 7.5.18.727. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). The issue is fixed in version 7.5.19.728; sites on affected versions should update now. Disclosed April 2022, reported by R3N0.

Vulnerability Overview

Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in FV Flowplayer Video Player (WordPress plugin) versions <= 7.5.18.727 via &fv_wp_flowplayer_field_splash parameter.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in FV Flowplayer Video Player <= 7.5.18.727 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For FV Flowplayer Video Player the fix is 7.5.19.728: builds <= 7.5.18.727 are affected, anything from 7.5.19.728 onward is not.

Remediation

Update to version 7.5.19.728, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to FV Flowplayer Video Player: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: FV Flowplayer Video Player 7.5.19.728 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2022-25613 https://www.wordfence.com/threat-intel/vulnerabilities/id/c7aa1f57-44c2-45ec-87a3-483f8dc9a957 https://nvd.nist.gov/vuln/detail/CVE-2022-25613

Related records

Same weakness class

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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