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iubenda Compliance Plugin EUVDEUVD-2026-71844

| CVE-2026-77263 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-09-05 Wordfence GHSA-3cj7-86g6-85rv
7.2
CVSS 3.1 · Vendor: Wordfence
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Severity by source

Vendor (Wordfence) PRIMARY
7.2 HIGH
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
vuln.today AI
6.1 MEDIUM

Stored XSS requires a victim to visit the injected page (UI:R); all other metrics match provided vector.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Sep 05, 2026 - 06:01 vuln.today
CVE Published
Sep 05, 2026 - 05:30 cve.org
HIGH 7.2

DescriptionCVE.org

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.

AnalysisAI

Stored Cross-Site Scripting in the iubenda All-in-one Compliance plugin for WordPress (all versions through 3.13.4) allows unauthenticated attackers to persist executable JavaScript in comment content that runs in the WordPress origin for any subsequent visitor, including logged-in administrators. The root cause is an interaction between the plugin's global strtr() substitution logic and WordPress's KSES allowlist: the substitution strips substrings from KSES-permitted tags (such as abbr title attributes and HTML comments), mutating what KSES treated as safe markup into executable elements like img onerror handlers. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation The plugin must be installed and active on a WordPress site. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The provided CVSS 7.2 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N) overstates real-world exploitability by scoring UI:N. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Update the iubenda All-in-one Compliance plugin to version 3.13.5 or later; this release contains the fix per the WordPress SVN changeset at 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. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, audit all WordPress installations to identify use of iubenda All-in-one Compliance plugin and document current versions. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-71844 vulnerability details – vuln.today

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