CVE-2026-107758 json
Colibri Page Builder <= 1.0.390 - Unauthenticated Stored Cross-Site Scripting via Comments
published 24d ago modified 24d ago also EUVD-2026-102618
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 1.0.390 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 injected payload survives storage because the widened comment allow-list permits SVG elements with arbitrary data-* attributes; execution occurs because colibri.js, enqueued globally on every front-end page, reads the stored data-target value via jQuery.data() — which HTML-entity-decodes it — and passes the resulting string directly into jQuery(), which parses a leading '<' as HTML and fires the embedded event handler.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 24d ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- extendthemes Colibri Page Builder
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/ccae5cbd-cfe6-48b3-8bcd-0b08ceb94680?source=cve
- plugins.trac.wordpress.org /browser/colibri-page-builder/trunk/extend-builder/filters/svg-kses.php#L68
- plugins.trac.wordpress.org /browser/colibri-page-builder/trunk/extend-builder/filters/svg-kses.php#L82
- plugins.trac.wordpress.org /browser/colibri-page-builder/trunk/extend-builder/assets/static/colibri.js#L57
- plugins.trac.wordpress.org /browser/colibri-page-builder/trunk/extend-builder/assets/static/colibri.js#L205
- plugins.trac.wordpress.org /browser/colibri-page-builder/trunk/extend-builder/filters/svg-kses.php#L4
Sources
- CVE List CVE-2026-107758
- NVD CVE-2026-107758
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.