CVE-2026-17540 json
Bit File Manager < 6.9.1 - Subscriber+ Arbitrary File Read and Deletion via Connector Command Request-Source Mismatch
published 2026-08-10 2 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-55041
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
The File Manager WordPress plugin before 6.9.1 does not properly authorise its file management commands, allowing any authenticated user, such as a subscriber, to read and delete arbitrary files under the WordPress installation directory, which could lead to the disclosure of the site's configuration secrets and to denial of service.
Patch / fix
- Unknown File Manager 6.9.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
1.83% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template WordPress Bit File Manager < 6.9.1 - Arbitrary File Read nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/096cb7df-26a5-4f5f-bbec-725e063a2b75/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Unknown File Manager
Classification
- Weakness
-
- CWE-284 Improper Access Control
- Technology feeds
References
-
wpscan.com
/vulnerability/096cb7df-26a5-4f5f-bbec-725e063a2b75/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-17540
- NVD CVE-2026-17540
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.