Cross-Site Scripting in Grav
The advisory, in context
Impact
Privileged users (with the ability to edit pages) have a mechanism to perform remote code execution via XSS. At a minimum, the vulnerability represents a bypass of security controls put in place to mitigate this form of attack.
The remote code execution can be performed because XSS would allow an attacker to execute functionality on behalf of a stolen administrative account - the facility to install custom plugins would then allow said attacker to install a plugin containing a web shell and thus garner access to the underlying system.
References
https://owasp.org/www-project-top-ten/2017/A7_2017-Cross-Site_Scripting_(XSS) https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html https://cwe.mitre.org/data/definitions/79.html
For more information
Please contact contact@pentest.co.uk
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
Earlier releases before 1.6.30
Fixed in 1.6.30
187 explicitly affected versions
0.8.0, 0.9.0, 0.9.1, 0.9.10, 0.9.11, 0.9.12, 0.9.13, 0.9.14, 0.9.15, 0.9.16, 0.9.17, 0.9.18, 0.9.19, 0.9.2, 0.9.20, 0.9.21, 0.9.22, 0.9.23, 0.9.24, 0.9.25, 0.9.26, 0.9.27, 0.9.28, 0.9.29, 0.9.3, 0.9.30, 0.9.31, 0.9.32, 0.9.33, 0.9.34, 0.9.35, 0.9.36, 0.9.37, 0.9.38, 0.9.39, 0.9.4, 0.9.40, 0.9.41, 0.9.42, 0.9.43, 0.9.44, 0.9.45, 0.9.5, 0.9.6, 0.9.7, 0.9.8, 0.9.9, 1.0.0, 1.0.0-rc.1, 1.0.0-rc.2, 1.0.0-rc.3, 1.0.0-rc.4, 1.0.0-rc.5, 1.0.0-rc.6, 1.0.1, 1.0.10, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.1.0, 1.1.0-beta.1, 1.1.0-beta.2, 1.1.0-beta.3, 1.1.0-beta.4, 1.1.0-beta.5, 1.1.0-rc.1, 1.1.0-rc.2, 1.1.0-rc.3, 1.1.1, 1.1.10, 1.1.11, 1.1.12, 1.1.13, 1.1.14, 1.1.15, 1.1.16, 1.1.17, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9, 1.1.9-rc.1, 1.1.9-rc.2, 1.1.9-rc.3, 1.2.0, 1.2.0-rc.1, 1.2.0-rc.2, 1.2.0-rc.3, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.3.0, 1.3.0-rc.1, 1.3.0-rc.2, 1.3.0-rc.3, 1.3.0-rc.4, 1.3.0-rc.5, 1.3.1, 1.3.10, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.3.9, 1.4.0, 1.4.0-beta.1, 1.4.0-beta.2, 1.4.0-beta.3, 1.4.0-rc.1, 1.4.0-rc.2, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.5.0, 1.5.0-beta.1, 1.5.0-beta.2, 1.5.0-rc.1, 1.5.1, 1.5.10, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.6.0, 1.6.0-beta.1, 1.6.0-beta.2, 1.6.0-beta.3, 1.6.0-beta.4, 1.6.0-beta.5, 1.6.0-beta.6, 1.6.0-beta.7, 1.6.0-beta.8, 1.6.0-rc.1, 1.6.0-rc.2, 1.6.0-rc.3, 1.6.0-rc.4, 1.6.1, 1.6.10, 1.6.11, 1.6.12, 1.6.13, 1.6.14, 1.6.15, 1.6.16, 1.6.17, 1.6.18, 1.6.19, 1.6.2, 1.6.20, 1.6.21, 1.6.22, 1.6.23, 1.6.24, 1.6.25, 1.6.26, 1.6.27, 1.6.28, 1.6.29, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.6.30"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.8.0",
"0.9.0",
"0.9.1",
"0.9.10",
"0.9.11",
"0.9.12",
"0.9.13",
"0.9.14",
"0.9.15",
"0.9.16",
"0.9.17",
"0.9.18",
"0.9.19",
"0.9.2",
"0.9.20",
"0.9.21",
"0.9.22",
"0.9.23",
"0.9.24",
"0.9.25",
"0.9.26",
"0.9.27",
"0.9.28",
"0.9.29",
"0.9.3",
"0.9.30",
"0.9.31",
"0.9.32",
"0.9.33",
"0.9.34",
"0.9.35",
"0.9.36",
"0.9.37",
"0.9.38",
"0.9.39",
"0.9.4",
"0.9.40",
"0.9.41",
"0.9.42",
"0.9.43",
"0.9.44",
"0.9.45",
"0.9.5",
"0.9.6",
"0.9.7",
"0.9.8",
"0.9.9",
"1.0.0",
"1.0.0-rc.1",
"1.0.0-rc.2",
"1.0.0-rc.3",
"1.0.0-rc.4",
"1.0.0-rc.5",
"1.0.0-rc.6",
"1.0.1",
"1.0.10",
"1.0.2",
"1.0.3",
"1.0.4",
"1.0.5",
"1.0.6",
"1.0.7",
"1.0.8",
"1.0.9",
"1.1.0",
"1.1.0-beta.1",
"1.1.0-beta.2",
"1.1.0-beta.3",
"1.1.0-beta.4",
"1.1.0-beta.5",
"1.1.0-rc.1",
"1.1.0-rc.2",
"1.1.0-rc.3",
"1.1.1",
"1.1.10",
"1.1.11",
"1.1.12",
"1.1.13",
"1.1.14",
"1.1.15",
"1.1.16",
"1.1.17",
"1.1.2",
"1.1.3",
"1.1.4",
"1.1.5",
"1.1.6",
"1.1.7",
"1.1.8",
"1.1.9",
"1.1.9-rc.1",
"1.1.9-rc.2",
"1.1.9-rc.3",
"1.2.0",
"1.2.0-rc.1",
"1.2.0-rc.2",
"1.2.0-rc.3",
"1.2.1",
"1.2.2",
"1.2.3",
"1.2.4",
"1.3.0",
"1.3.0-rc.1",
"1.3.0-rc.2",
"1.3.0-rc.3",
"1.3.0-rc.4",
"1.3.0-rc.5",
"1.3.1",
"1.3.10",
"1.3.2",
"1.3.3",
"1.3.4",
"1.3.5",
"1.3.6",
"1.3.7",
"1.3.8",
"1.3.9",
"1.4.0",
"1.4.0-beta.1",
"1.4.0-beta.2",
"1.4.0-beta.3",
"1.4.0-rc.1",
"1.4.0-rc.2",
"1.4.1",
"1.4.2",
"1.4.3",
"1.4.4",
"1.4.5",
"1.4.6",
"1.4.7",
"1.4.8",
"1.5.0",
"1.5.0-beta.1",
"1.5.0-beta.2",
"1.5.0-rc.1",
"1.5.1",
"1.5.10",
"1.5.2",
"1.5.3",
"1.5.4",
"1.5.5",
"1.5.6",
"1.5.7",
"1.5.8",
"1.5.9",
"1.6.0",
"1.6.0-beta.1",
"1.6.0-beta.2",
"1.6.0-beta.3",
"1.6.0-beta.4",
"1.6.0-beta.5",
"1.6.0-beta.6",
"1.6.0-beta.7",
"1.6.0-beta.8",
"1.6.0-rc.1",
"1.6.0-rc.2",
"1.6.0-rc.3",
"1.6.0-rc.4",
"1.6.1",
"1.6.10",
"1.6.11",
"1.6.12",
"1.6.13",
"1.6.14",
"1.6.15",
"1.6.16",
"1.6.17",
"1.6.18",
"1.6.19",
"1.6.2",
"1.6.20",
"1.6.21",
"1.6.22",
"1.6.23",
"1.6.24",
"1.6.25",
"1.6.26",
"1.6.27",
"1.6.28",
"1.6.29",
"1.6.3",
"1.6.4",
"1.6.5",
"1.6.6",
"1.6.7",
"1.6.8",
"1.6.9"
]
}