iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more <= 3.13.6 - Unauthenticated Denial of Service via Comment Content

Medium 5.3 CWE-835Fixed in 3.13.7
ID
WPSEC-2026-2211
Plugin
iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more (iubenda-cookie-law-solution)
Affected
all versions before 3.13.7
Remediation
Update to 3.13.7 or later.
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-835
Usage
Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-11-03
Attack surface
iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more on WPSec AttackSurface
Fix released
Published

Description

The iubenda plugin for WordPress is vulnerable to Denial of Service via comment content in all versions up to, and including, 3.13.6, due to an infinite loop in the Native Blocking HTML parser's restore_noise() routine, which writes the placeholder prefix back into the text whenever it meets an unknown placeholder key. This makes it possible for unauthenticated attackers to post a comment containing a crafted placeholder token that uses up memory or execution time and stops any page showing the published comment from rendering.

References

Published by WPSec. Provided as is, without warranty. Corrections: contact us.

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License: CC BY 4.0