Medium severity5.5NVD Advisory· Published Mar 15, 2021· Updated Jun 17, 2026
CVE-2020-29556
CVE-2020-29556
Description
The Backup functionality in Grav CMS through 1.7.0-rc.17 allows an authenticated attacker to read arbitrary local 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.)
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
getgrav/gravPackagist | >= 1.7.0-beta.1, <= 1.7.0-rc.17 | — |
getgrav/gravPackagist | < 1.6.30 | 1.6.30 |
Affected products
31cpe:2.3:a:getgrav:grav_cms:*:*:*:*:*:*:*:*+ 28 more
- cpe:2.3:a:getgrav:grav_cms:*:*:*:*:*:*:*:*range: <1.7.0
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta10:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:beta1:*:*:*:*:*:*
- 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: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:rc1:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc20:*:*:*:*:*:*
- cpe:2.3:a:getgrav:grav_cms:1.7.0:rc2:*:*:*:*:*:*
- 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:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
4- blog.bssi.fr/cve-2020-29553-cve-2020-29555-cve-2020-29556-multiple-vulnerabilities-within-cms-grav/nvdExploitPatchThird Party Advisory
- github.com/advisories/GHSA-r3rg-jrjq-w4mrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-29556ghsaADVISORY
- blog.bssi.fr/cve-2020-29553-cve-2020-29555-cve-2020-29556-multiple-vulnerabilities-within-cms-gravghsaWEB
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