High severity · published Jul 31, 2026
CVE-2026-18481
Stored XSS in Participant URL Field leads to Account Takeover via Session Token Theft
7.3
CVSS
0.5%
EPSS
No
On KEV
Description
Stored cross-site scripting in the participant URL handling in AWS Ops
Wheel before PR #168 might allow an authenticated remote user to steal
session tokens and escalate to full administrative control of the
deployed instance via a crafted participant_url value containing a
dangerous URI scheme.
To remediate this issue, users should redeploy from the latest version of aws-ops-wheel.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AO
AWS Ops Wheel · AWS
through PR168 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18481
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18481
aws.amazon.com
https://aws.amazon.com/security/security-bulletins/2026-068-aws/
github.com
https://github.com/aws/aws-ops-wheel/pull/168
github.com
https://github.com/aws/aws-ops-wheel/security/advisories/GHSA-6rr8-cf9x-pj23
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