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cvelistGitHub_MCVELIST:CVE-2022-31059
HistoryJun 14, 2022 - 7:55 p.m.

CVE-2022-31059 Discourse Calendar Event names susceptible to Cross-site Scripting

2022-06-1419:55:10
CWE-79
GitHub_M
www.cve.org
6
discourse calendar
cross-site scripting
xss
content security policy
vulnerability
patched

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

25.8%

Discourse Calendar is a calendar plugin for Discourse, an open-source messaging app. Prior to version 1.0.1, parsing and rendering of Event names can be susceptible to cross-site scripting (XSS) attacks. This vulnerability only affects sites which have modified or disabled Discourse’s default Content Security Policy. This issue is patched in version 1.0.1 of the Discourse Calendar plugin. As a workaround, ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks.

CNA Affected

[
  {
    "product": "discourse-calendar",
    "vendor": "discourse",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.0.1"
      }
    ]
  }
]

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

25.8%

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