EUVD-2026-71844
GHSA-3cj7-86g6-85rv
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Stored XSS requires a victim to visit the injected page (UI:R); all other metrics match provided vector.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.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
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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External POC / Exploit Code
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