ghsa-76pq-5fjf-j6xg
Vulnerability from github
Published
2022-05-24 16:48
Modified
2024-04-04 00:58
Severity ?
Details
In MyBB before 1.8.21, an attacker can abuse a default behavior of MySQL on many systems (that leads to truncation of strings that are too long for a database column) to create a PHP shell in the cache directory of a targeted forum via a crafted XML import, as demonstrated by truncation of aaaaaaaaaaaaaaaaaaaaaaaaaa.php.css to aaaaaaaaaaaaaaaaaaaaaaaaaa.php with a 30-character limit, aka theme import stylesheet name RCE.
{ affected: [], aliases: [ "CVE-2019-12831", ], database_specific: { cwe_ids: [ "CWE-20", ], github_reviewed: false, github_reviewed_at: null, nvd_published_at: "2019-06-15T18:29:00Z", severity: "HIGH", }, details: "In MyBB before 1.8.21, an attacker can abuse a default behavior of MySQL on many systems (that leads to truncation of strings that are too long for a database column) to create a PHP shell in the cache directory of a targeted forum via a crafted XML import, as demonstrated by truncation of aaaaaaaaaaaaaaaaaaaaaaaaaa.php.css to aaaaaaaaaaaaaaaaaaaaaaaaaa.php with a 30-character limit, aka theme import stylesheet name RCE.", id: "GHSA-76pq-5fjf-j6xg", modified: "2024-04-04T00:58:22Z", published: "2022-05-24T16:48:06Z", references: [ { type: "ADVISORY", url: "https://nvd.nist.gov/vuln/detail/CVE-2019-12831", }, { type: "WEB", url: "https://blog.mybb.com/2019/06/10/mybb-1-8-21-released-security-maintenance-release", }, { type: "WEB", url: "https://blog.ripstech.com/2019/mybb-stored-xss-to-rce", }, ], schema_version: "1.4.0", severity: [ { score: "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", type: "CVSS_V3", }, ], }
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Sightings
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Nomenclature
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