Vulnerability Details : CVE-2016-6896
Directory traversal vulnerability in the wp_ajax_update_plugin function in wp-admin/includes/ajax-actions.php in WordPress 4.5.3 allows remote authenticated users to cause a denial of service or read certain text files via a .. (dot dot) in the plugin parameter to wp-admin/admin-ajax.php, as demonstrated by /dev/random read operations that deplete the entropy pool.
Vulnerability category: Directory traversalDenial of service
Products affected by CVE-2016-6896
- cpe:2.3:a:wordpress:wordpress:4.5.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-6896
32.65%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 96 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-6896
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:P |
8.0
|
4.9
|
NIST | |
|
7.1
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H |
2.8
|
4.2
|
NIST |
CWE ids for CVE-2016-6896
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-6896
-
https://sumofpwn.nl/advisory/2016/path_traversal_vulnerability_in_wordpress_core_ajax_handlers.html
Summer of Pwnage - Path traversal vulnerability in WordPress Core Ajax handlersExploit;Technical Description;Third Party Advisory
-
https://wpvulndb.com/vulnerabilities/8606
WordPress 4.5.3 - Authenticated Denial of Service (DoS)
-
http://www.securitytracker.com/id/1036683
WordPress Bugs Let Remote Users Conduct Cross-Site Request Forgery Attacks and Remote Authenticated Users Deny Service - SecurityTracker
-
https://www.exploit-db.com/exploits/40288/
WordPress 4.5.3 - Directory Traversal / Denial of Service
-
http://www.openwall.com/lists/oss-security/2016/08/20/1
oss-security - Path traversal vulnerability in WordPress Core Ajax handlersMailing List;Third Party Advisory
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