Vulnerability · Published Jul 31, 2026 · Assigned by AMZN

CVE-2026-18481Stored XSS in Participant URL Field leads to Account Takeover via Session Token Theft

High 7.3

In plain English

A high-severity cross-site scripting in AWS Ops Wheel from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.5%top 56.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
AWS	AWS Ops Wheel	0 – through PR168

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

References

https://aws.amazon.com/security/security-bulletins/2026-068-aws/ vendor-advisory
https://github.com/aws/aws-ops-wheel/pull/168 patch
https://github.com/aws/aws-ops-wheel/security/advisories/GHSA-6rr8-cf9x-pj23 third-party-advisory