Riskcovery

CVE-2026-12209

RubyLouvre avalon Template Filter index.js prototype pollution

State
Published
Severity
6.9 Medium
Published
Jun 15, 2026
Updated
Jun 15, 2026
Reserved
Jun 14, 2026

Read the record on cve.org

Description

A security vulnerability has been detected in RubyLouvre avalon up to 2.2.10. The impacted element is an unknown function of the file src/filters/index.js of the component Template Filter Handler. Such manipulation leads to improperly controlled modification of object prototype attributes. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:PVulDB
3.15.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:RVulDB
3.05.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:RVulDB
2.05.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:URVulDB

Weaknesses

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
  • CWE-94 Code Injection

Affected Products

ProductVersions
avalonRubyLouvre
  • 2.2.0Affected
  • 2.2.1Affected
  • 2.2.2Affected
  • 2.2.3Affected
  • 2.2.4Affected
  • 2.2.5Affected
  • 2.2.6Affected
  • 2.2.7Affected
  • 2.2.8Affected
  • 2.2.9Affected
  • 2.2.10Affected

References

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