CVE-2026-92746
Gutenverse <= 4.0.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via Post Comment Block 'suffixMain' Attribute
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
The Gutenverse – WordPress Blocks, Page Builder & Site Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Post Comment Block 'suffixMain' Attribute in all versions up to, and including, 4.0.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress core wp_kses_post sanitization does not mitigate this vulnerability because the payload is stored inside a Gutenberg block delimiter comment rather than as a raw HTML tag, and is only rendered as exploitable HTML at the PHP render stage.
Timeline
ID reserved
By Wordfence
- 9 days later
· 9 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.19% · top 92% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Weakness
Affected products
jegstudio · Gutenverse – WordPress Blocks, Page Builder & Site Editor
- affected ≤ 4.0.8
References (4)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e35f9e09-c386-4e37-9d81-8dd2863457ac?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/gutenverse/tags/4.0.8/includes/block/class-post-comment.php#L80 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/gutenverse/tags/4.0.8/includes/block/class-post-comment.php#L51 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset/3710420/gutenverse/trunk/includes/block/class-post-comment.php (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-92746)Record last updated .