CVE-2026-77263CWE-79cross-site-scripting

CVE-2026-77263

High · published September 5, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
36.0
In the wild
Unconfirmed
What it is

The iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 3.13.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit works by embedding KSES-allowed markup such as abbr title attributes and HTML comments in a submitted comment so that the global strtr() substitution strips substrings from an inert tag, mutating it into an executable element such as an img onerror handler that runs in the WordPress origin for any visitor, including logged-in administrators.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00428 · 36.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-05T10:17Z
References (8)
https://plugins.trac.wordpress.org/browser/iubenda-cookie-law-solution/trunk/iubenda-cookie-class/iubenda.class.php#L381 · [email protected]https://plugins.trac.wordpress.org/browser/iubenda-cookie-law-solution/trunk/iubenda-cookie-class/iubenda.class.php#L941 · [email protected]https://plugins.trac.wordpress.org/browser/iubenda-cookie-law-solution/trunk/iubenda_cookie_solution.php#L834 · [email protected]https://plugins.trac.wordpress.org/browser/iubenda-cookie-law-solution/trunk/iubenda_cookie_solution.php#L857 · [email protected]https://plugins.trac.wordpress.org/changeset/3675630/iubenda-cookie-law-solution/trunk/iubenda-cookie-class/iubenda.class.php · [email protected]https://plugins.trac.wordpress.org/changeset?old_path=%2Fiubenda-cookie-law-solution/tags/3.13.4&new_path=%2Fiubenda-cookie-law-solution/tags/3.13.5 · [email protected]https://plugins.trac.wordpress.org/changeset?reponame=&new=3675630%40iubenda-cookie-law-solution%2Ftags%2F3.13.5&old=3663183%40iubenda-cookie-law-solution%2Ftags%2F3.13.4 · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/f8d18aaa-c8f4-4688-841d-2a77b71b60b0?source=cve · [email protected]
EPSS history
Timeline
  • 06 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 05 SEP 05:30Z
    iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more <= 3.13.4 - Unauthenticated Stored Cross-Site Scripting via Comment Content
    cvelistv5