CVE-2026-33209: medium-severity vulnerability in avo-hq avo
Avo has a XSS vulnerability on `return_to` param
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.30.3, a reflected cross-site scripting (XSS) vulnerability exists in the return_to query parameter used in the avo interface. An attacker can craft a malicious URL that injects arbitrary JavaScript, which is executed when he clicks a dynamically generated navigation button. This issue has been patched in version 3.30.3.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Affected products
avo-hq · avoRelated CVEs — avo-hq avo
In the same product, most dangerous first.
CVE-2023-34102HIGHPossible unsafe reflection / partial denial of service in avoEPSS 1.6%CVE-2024-22191HIGHStored cross-site scripting (XSS) in `key_value` field in AvoEPSS 0.7%CVE-2024-22411MEDIUMCross site scripting in Action messages on AvoEPSS 0.7%CVE-2023-34103HIGHStored XSS (Cross Site Scripting) in html content based fields of avoEPSS 0.6%CVE-2026-53769MEDIUMAvo: Direct attachment upload endpoint lacks upload authorization and bypasses field-level upload policyEPSS 0.4%CVE-2026-55518CRITICALAvo: Missing Authorization in Avo Association Attach Endpoint Allows Unauthorized Relationship Manipulation and Privilege EscalationEPSS 0.4%