CVE-2026-6401 json
Bottom Bar <= 0.1.7 - Cross-Site Request Forgery to Settings Update
published 2026-05-20 5 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-31039
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
The Bottom Bar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 0.1.7. This is due to missing nonce verification on the plugin's settings update forms handled in bottom-bar-admin.php. None of the three settings forms (main settings, sharing services, restore defaults) include a wp_nonce_field(), and the server-side processing code never calls check_admin_referer() or any equivalent nonce validation before processing POST data and calling update_option(). This makes it possible for unauthenticated attackers to trick a logged-in administrator into submitting a crafted request that updates plugin configuration options, such as changing the language, maximum post counts, or enabled sharing services.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
Affected products
- svil4ok Bottom Bar
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/db0715ed-a06e-4a68-b9c3-408887cae113?source=cve
- plugins.trac.wordpress.org /browser/bottom-bar/trunk/bottom-bar-admin.php#L16
- plugins.trac.wordpress.org /browser/bottom-bar/tags/0.1.7/bottom-bar-admin.php#L16
- plugins.trac.wordpress.org /browser/bottom-bar/trunk/bottom-bar-admin.php#L59
- plugins.trac.wordpress.org /browser/bottom-bar/tags/0.1.7/bottom-bar-admin.php#L59
Sources
- CVE List CVE-2026-6401
- NVD CVE-2026-6401
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.