CVE-2026-13140Network attack vector

Stored XSS via unvalidated AWS key location

Published Jun 24, 2026 · Updated Jun 24, 2026

Stored XSS in Thinkst Applied Research Canarytokens before f5aa5c4e allows remote attackers to run JavaScript through a crafted AWS key link. _parse_aws_key_trigger accepts public_location without restricting its URL scheme, and ManageToken.vue binds the value directly to an anchor href. Exploitation requires the token's unguessable identifier and a user click; script execution is limited to extracting details for that AWS API Key Canarytoken.

CVSS severity2.0
Low
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Thinkst Applied Research Canarytokens before f5aa5c4e allows remote attackers to run JavaScript through a crafted AWS key link. _parse_aws_key_trigger accepts public_location without restricting its URL scheme, and ManageToken.vue binds the value directly to an anchor href. Exploitation requires the token's unguessable identifier and a user click; script execution is limited to extracting details for that AWS API Key Canarytoken.

The record

CVE
CVE-2026-13140
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Thinkst Applied Research
Product
Canarytokens
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4116b92cb <f5aa5c4e
  2. Affected versionversion=sha-4116b92cb <f5aa5c4e

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Thinkst Applied Research · Canarytokensversion=4116b92cb <f5aa5c4e; version=sha-4116b92cb <f5aa5c4e

Published CVSS scores

2.0GitHubCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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