PT-2021-15967 · WordPress · Browser Screenshots

Apple502J · Published 2021-07-12 · Updated 2021-07-15 · CVE-2021-24439

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Browser Screenshots WordPress plugin versions prior to 1.7.6

Description The issue allows authenticated users with a role as low as Contributor to perform Stored Cross-Site Scripting attacks. This is due to the image class parameter of the "browser-shot" shortcode not being properly escaped.

Recommendations For versions prior to 1.7.6, update to version 1.7.6 or later to resolve the issue. As a temporary workaround, consider restricting access to the browser-shot shortcode for users with low roles, such as Contributor, until the update is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24439

Affected Products

Browser Screenshots

References · 4

• 🔥 https://wpscan.com/vulnerability/9c538c51-ae58-461d-b93b-cc9dfebf2bc0 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-24439 · Security Note
• https://osv.dev/vulnerability/CVE-2021-24439 · Vendor Advisory
• https://t.me/cvenotify/17681 · Telegram Post