WordPress security changelog
MEDIUM CVE-2021-24439 Modified

Browser Screenshots: Cross-site scripting

Browser Screenshots is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.

CVE / CNA score 5.4 CVSS · contact@wpscan.com
NVD score 5.4 CVSS 3.1 · nvd@nist.gov
Component
Browser Screenshots
Plugin slug
browser-screenshots
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Jul 12, 2021
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Jul 12, 2021 and is one of 1 known issue for this plugin.

Update, patch or deactivate.

Update Browser Screenshots to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

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.

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

Primary and upstream sources