PT-2022-11827 · WordPress · Crisp Live Chat

José Aguilera · Published 2022-01-18 · Updated 2022-01-24 · CVE-2021-43353

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Crisp Live Chat WordPress plugin versions up to, and including 0.31

Description The issue is related to Cross-Site Request Forgery due to missing nonce validation via the crisp plugin settings page function found in the ~/crisp.php file. This made it possible for attackers to inject arbitrary web scripts.

Recommendations For versions up to, and including 0.31, update to a version that includes the necessary nonce validation to prevent Cross-Site Request Forgery attacks. As a temporary workaround, consider disabling the crisp plugin settings page function until a patch is available.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2021-43353

Affected Products

Crisp Live Chat

References · 6

• https://osv.dev/vulnerability/CVE-2021-43353 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43353 · Security Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2643954%40crisp&new=2643954%40crisp&sfp_email=&sfph_mail= · Patch
• https://t.me/cvenotify/25785 · Telegram Post
• https://wordfence.com/vulnerability-advisories/#CVE-2021-43353 · Note
• https://t.me/cibsecurity/35733 · Telegram Post