Published:2021/04/27 Last Updated:2021/04/27
JVN#35240327
WordPress plugin "WP Fastest Cache" vulnerable to directory traversal
Overview
WordPress plugin "WP Fastest Cache" contains a directory traversal vulnerability.
Products Affected
- WP Fastest Cache versions prior to 0.9.1.7
Description
WordPress plugin "WP Fastest Cache" provided by Emre Vona contains a directory traversal vulnerability (CWE-22).
Impact
Arbitrary files on the server may be deleted by a user with an administrative privilege.
Solution
Update the plugin
Update the plugin according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| Emre Vona | WP Fastest Cache |
| WP Fastest Cache Premium | The Fastest WordPress Cache Plugin |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
Base Score:
3.8
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
CVSS v2
AV:N/AC:L/Au:S/C:N/I:P/A:P
Base Score:
5.5
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
Gen Sato of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to the developer and coordinated on his own.
After coordination was completed, this case was reported to JPCERT/CC, and JPCERT/CC coordinated with the developer for the publication.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2021-20714 |
| JVN iPedia |
JVNDB-2021-000034 |