Vulnerability Details : CVE-2020-29555
The BackupDelete functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to delete arbitrary files on the underlying server by exploiting a path-traversal technique. (This vulnerability can also be exploited by an unauthenticated attacker due to a lack of CSRF protection.)
Vulnerability category: Directory traversalCross-site request forgery (CSRF)
Products affected by CVE-2020-29555
- cpe:2.3:a:getgrav:grav_cms:*:*:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta10:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta6:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta7:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta8:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta9:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc10:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc11:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc12:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc13:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc14:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc15:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc16:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc17:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc20:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc4:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc5:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc6:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc7:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc8:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc9:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-29555
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-29555
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:P/A:P |
8.0
|
4.9
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
2.8
|
5.2
|
NIST |
CWE ids for CVE-2020-29555
-
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-2020-29555
-
https://blog.bssi.fr/cve-2020-29553-cve-2020-29555-cve-2020-29556-multiple-vulnerabilities-within-cms-grav/
[CVE-2020-29553] [CVE-2020-29555] [CVE-2020-29556]: Multiple vulnerabilities within CMS Grav - Blog BSSIExploit;Patch;Third Party Advisory
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