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cveGitHub_MCVE-2021-32735
HistoryJul 02, 2021 - 3:15 p.m.

CVE-2021-32735

2021-07-0215:15:10
CWE-80
CWE-79
GitHub_M
web.nvd.nist.gov
42
2
cve-2021-32735
kirby cms
content management system
xss
cross-site scripting
privilege escalation
site security
vulnerability patch

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

7.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

EPSS

0.001

Percentile

19.4%

Kirby is a content management system. In Kirby CMS versions 3.5.5 and 3.5.6, the Panel’s ListItem component (used in the pages and files section for example) displayed HTML in page titles as it is. This could be used for cross-site scripting (XSS) attacks. Malicious authenticated Panel users can escalate their privileges if they get access to the Panel session of an admin user. Visitors without Panel access can use the attack vector if the site allows changing site data from a frontend form. Kirby 3.5.7 patches the vulnerability. As a partial workaround, site administrators can protect against attacks from visitors without Panel access by validating or sanitizing provided data from the frontend form.

Affected configurations

Nvd
Vulners
Node
getkirbykirbyRange<3.5.7
VendorProductVersionCPE
getkirbykirby*cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "kirby",
    "vendor": "getkirby",
    "versions": [
      {
        "status": "affected",
        "version": "<= 3.5.5, <= 3.5.6"
      }
    ]
  }
]

Social References

More

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

7.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

EPSS

0.001

Percentile

19.4%

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