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

> CVE-2026-18481: Stored XSS in Participant URL Field leads to Account Takeover via Session Token Theft. CVSS 7.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-18481
Last updated: 2026-10-23T23:10:00Z

- Published: 2026-07-31 18:12 UTC · Updated: 2026-10-23 23:10 UTC · Assigner: AMZN
- CVSS: 7.3 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- EPSS: 0.51%, 43th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-79

## 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 vendors and products

- AWS: AWS Ops Wheel

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-18481)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-18481)
- [https://aws.amazon.com/security/security-bulletins/2026-068-aws/](https://aws.amazon.com/security/security-bulletins/2026-068-aws/)
- [https://github.com/aws/aws-ops-wheel/pull/168](https://github.com/aws/aws-ops-wheel/pull/168)
- [https://github.com/aws/aws-ops-wheel/security/advisories/GHSA-6rr8-cf9x-pj23](https://github.com/aws/aws-ops-wheel/security/advisories/GHSA-6rr8-cf9x-pj23)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-18481 · Markdown: https://rewindex.com/cve/CVE-2026-18481.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-18481 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:13:26.228Z