Vulnerability DatabaseWS-2017-3800
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WS-2017-3800
Published:May 14, 2026
Updated:May 14, 2026
In concrete5 in versions 8.3.0 to 8.4.5 is vulnerable to Stored XSS on Add Calendar in concrete/elements/calendar/block/data_source.php
Affected Packages
concrete5/concrete5 (PHP):
Affected version(s) >=8.3.0 <dev-dependabot/npm_and_yarn/build/postcss-and-vue-loader-8.4.31
Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/build/postcss-and-vue-loader-8.4.31
concrete5/core (PHP):
Affected version(s) >=8.3.0 <8.4.2
Fix Suggestion:
Update to version 8.4.2
concrete5/concrete5 (PHP):
Affected version(s) =dev-feature/swap-concrete5-queue <dev-dependabot/npm_and_yarn/build/json5-1.0.2
Fix Suggestion:
Update to version dev-dependabot/npm_and_yarn/build/json5-1.0.2
Related Resources (1)
https://github.com/concrete5/concrete5/commit/35c23bdd7a
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CVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW