Kubio AI Page Builder <= 2.9.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via kubio/shortcode Block via Product Review
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Not reported
- Published
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 14/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The Kubio AI Page Builder plugin for WordPress has a stored cross-site scripting flaw in its product review handling. An attacker with at least subscriber-level login can reach it remotely over the network by submitting a review with a script payload, which runs in the browser of anyone who opens an affected page, provided the review is approved and the single-product template uses a Kubio-rendered post-content block.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment (review body)' parameter in all versions up to, and including, 2.9.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires the attacker's review containing the payload to be approved, either automatically (due to a previously approved review from the same account) or manually by an administrator, and the active single-product template must use a Kubio-rendered wp:post-content block.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure3/25Reachable over the network · Unknown: No advisory context yet
- Reach?/20Unknown. No tracked technology or package matched
- Severity6.4/10CVSS 6.4
- No patch5/5No patch listed yet
What would change the score
- Would score about 69 if added to CISA KEV
- Would score about 64 if CISA's SSVC rates exploitation active
- Would score about 33 if advisories confirm default setups are exposed
Timeline
- CVE published
- First seen by cve.now
Affected versions
- extendthemes Kubio AI Page Builder
through 2.9.4
Evidence 5
- Link
- Link
- Link
- Link
- Link
Corrections
None so far.
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Questions about CVE-2026-115816
Is CVE-2026-115816 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-2026-115816?
Kubio AI Page Builder: through 2.9.4.Source: cve.now feed data