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iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more <= 3.13.6 - Unauthenticated Stored Cross-Site Scripting via Comment…

7.2HighCNA
Exploited
No known exploitation
Fix
No fix listed
Who is exposed
Not reported
Published
Last modified
0.25% · 16th percentile
29/100 · provisional
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

The iubenda cookie consent plugin for WordPress, in older releases, has a stored cross-site scripting flaw that lets an unauthenticated attacker remotely, without logging in, inject scripts through a comment. The scripts run whenever a user opens an affected page, once an administrator approves the first comment under WordPress's default moderation setting.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

The iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.13.6. This is due to the way iubendaParser::parse_comments() re-processes HTML inside IUB-COOKIE-BLOCK markers through the bundled simple_html_dom parser after WordPress has already KSES-filtered the saved comment: simple_html_dom's remove_noise() stores <code> bodies under a deterministic key ('___noise___ 1000') and restore_noise() later substitutes any matching substring back into attribute values WITHOUT re-escaping, allowing a quote-breaking payload stashed in an allowed <code> element to be injected into an allowed <abbr title="___noise___ 1000"> attribute at render time. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, after an administrator approves the first (otherwise moderated) comment under WordPress's default comment_previously_approved setting.

cve.now Index

29Pcve.now Index 29 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure17/25No login or user action needed per the CVSS vector, reachable over the network without a login · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity7.2/10CVSS 7.2
  • No patch5/5No patch listed yet

What would change the score

  • Would score about 74 if added to CISA KEV
  • Would score about 69 if CISA's SSVC rates exploitation active
  • Would score about 34 if advisories confirm default setups are exposed

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • iubenda iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more

    through 3.13.6

Evidence 8

  1. Link
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Show all 8 sourcesShow fewer sources
  1. Link
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  3. Link

Corrections

None so far.

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Questions about CVE-2026-120540

Is CVE-2026-120540 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-120540?

iubenda | All-in-one Compliance for GDPR / CCPA Cookie Consent + more: through 3.13.6.Source: cve.now feed data