CVE-2026-18481

Stored XSS in Participant URL Field leads to Account Takeover via Session Token Theft

State: Published
Severity: 6.2 Medium
Published: Jul 31, 2026
Updated: Jul 31, 2026
Reserved: Jul 31, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.2 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N	AMZN
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N	AMZN

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
AWS Ops WheelAWS	PR168 and earlierAffected

References

https://aws.amazon.com/security/security-bulletins/2026-068-aws/vendor-advisory
https://github.com/aws/aws-ops-wheel/pull/168patch
https://github.com/aws/aws-ops-wheel/security/advisories/GHSA-6rr8-cf9x-pj23third-party-advisory

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