CVE-2021-24665Public exploitNetwork attack vector

Stored XSS via unescaped shortcode attributes

Published Aug 30, 2021 · Updated Aug 3, 2024

Stored XSS in Tips and Tricks HQ WP Video Lightbox before 1.9.3 allows remote authenticated users to execute script via shortcode attributes. The shortcode rendering path places contributor-controlled attribute values into generated HTML without output escaping, leaving event-handler payloads executable. Contributor access is sufficient to store a payload; execution occurs when another user loads or interacts with the affected post.

CVSS severityUnavailable
Unscored
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stored XSS in Tips and Tricks HQ WP Video Lightbox before 1.9.3 allows remote authenticated users to execute script via shortcode attributes. The shortcode rendering path places contributor-controlled attribute values into generated HTML without output escaping, leaving event-handler payloads executable. Contributor access is sufficient to store a payload; execution occurs when another user loads or interacts with the affected post.

The record

CVE
CVE-2021-24665
Published
Aug 30, 2021
Updated
Aug 3, 2024
Vendor
Tips and Tricks HQ
Product
WP Video Lightbox
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=1.9.3 <1.9.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tips and Tricks HQ · WP Video Lightboxversion=1.9.3 <1.9.3

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

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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