The Browser Screenshots WordPress plugin before 1.7.6 allowed authenticated users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks as the image_class parameter of the browser-shot shortcode was not escaped.
CVE-2021-24439 is a medium severity with CVSS 5.4 Stored Cross-Site Scripting issue affecting the Plugin Browser Screenshots. It affects Versions before 1.7.6 and is fixed in 1.7.6.
Use the related hub and response guides to connect this CVE-2021-24439 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2021-24439 is tracked for the Plugin Browser Screenshots as medium severity with CVSS 5.4. The affected range is Versions before 1.7.6. Update Browser Screenshots to 1.7.6 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions before 1.7.6.
Confirm Browser Screenshots is updated to 1.7.6 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
browser-shots
View on wordpress.org
|
| CVE | CVE-2021-24439 |
| Patched Versions |
1.7.6
|
| Affected Versions |
Versions before 1.7.6
|
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