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Decidim Cross-site Scripting vulnerability in the processes filter

High severity GitHub Reviewed Published Jul 11, 2023 in decidim/decidim • Updated Nov 29, 2023

Package

bundler decidim (RubyGems)

Affected versions

>= 0.27.0, < 0.27.3
>= 0.14.0, < 0.26.7

Patched versions

0.27.3
0.26.7
bundler decidim-core (RubyGems)
>= 0.27.0, < 0.27.3
>= 0.14.0, < 0.26.7
0.27.3
0.26.7

Description

Impact

The processes filter feature is susceptible to Cross-site scripting. This allows a remote attacker to execute JavaScript code in the context of a currently logged-in user. An attacker could use this vulnerability to make other users endorse or support proposals they have no intention of supporting or endorsing.

Patches

The problem was patched in v0.27.3 and v0.26.7

References

@andreslucena andreslucena published to decidim/decidim Jul 11, 2023
Published by the National Vulnerability Database Jul 11, 2023
Published to the GitHub Advisory Database Jul 11, 2023
Reviewed Jul 11, 2023
Last updated Nov 29, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS score

0.187%
(57th percentile)

Weaknesses

CVE ID

CVE-2023-34089

GHSA ID

GHSA-5652-92r9-3fx9

Source code

Credits

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