CVE-2025-27005Network attack vector

Unauthenticated browser script execution

Published Jan 22, 2026 · Updated Jan 22, 2026

Reflected XSS in Lambert Group HTML5 Video Player WordPress Plugin 5.3.5 and earlier allows remote attackers to run script in a victim's browser. Public materials do not identify the request parameter or output path that reflects untrusted input into the generated page without neutralization. Exploitation requires a victim to follow a crafted link or visit a crafted page, enabling script execution in that browser context.

CVSS severity7.1
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Lambert Group HTML5 Video Player WordPress Plugin 5.3.5 and earlier allows remote attackers to run script in a victim's browser. Public materials do not identify the request parameter or output path that reflects untrusted input into the generated page without neutralization. Exploitation requires a victim to follow a crafted link or visit a crafted page, enabling script execution in that browser context.

The record

CVE
CVE-2025-27005
Published
Jan 22, 2026
Updated
Jan 22, 2026
Vendor
Lambert Group
Product
HTML5 Video Player WordPress Plugin
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=<= 5.3.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lambert Group · HTML5 Video Player WordPress Pluginversion=n/a <=<= 5.3.5

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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