CVE-2026-6178 json
Betheme <= 28.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'icon_box_2' Shortcode
published 2026-08-26 2 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-66334
- cvss
- 6.4
- 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 Betheme theme for WordPress is vulnerable to Stored Cross-Site Scripting via the theme's 'icon_box_2' shortcode in all versions up to, and including, 28.4 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- MuffinGroup Betheme
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/686dd63b-5471-4654-8009-e3ab648f8b86?source=cve
- plugins.trac.wordpress.org /browser/betheme/trunk/functions/theme-shortcodes.php#L11719
- plugins.trac.wordpress.org /browser/betheme/tags/28.3.3/functions/theme-shortcodes.php#L11719
- plugins.trac.wordpress.org /browser/betheme/trunk/functions/theme-shortcodes.php#L11651
- plugins.trac.wordpress.org /browser/betheme/tags/28.3.3/functions/theme-shortcodes.php#L11651
- plugins.trac.wordpress.org /browser/betheme/trunk/functions/theme-shortcodes.php#L11840
- plugins.trac.wordpress.org /browser/betheme/tags/28.3.3/functions/theme-shortcodes.php#L11840
- support.muffingroup.com /changelog/
Sources
- CVE List CVE-2026-6178
- NVD CVE-2026-6178
Fencer Vulns 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.