CVE-2026-13140 Stored Cross-Site Scripting in Canarytokens.org
Stored XSS in Canarytokens.org allows attackers to execute scripts in victim browsers, potentially leading to session hijacking or data theft.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-13140?
CVE-2026-13140 is a low-severity cross-site scripting vulnerability in Thinkst Applied Research Canarytokens, published on 24 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Stored Cross-Site Scripting in the exposed AWS API key store of Thinkst Applied Research Canarytokens.
Anonymous exploitation requires knowledge of a random identifier.
This issue affects Canarytokens: from Docker tag sha-4116b92cb before sha-f5aa5c4e, from Git commit 4116b92cb before f5aa5c4e.
Weakness: CWE-79
Which versions are affected by CVE-2026-13140?
How do I fix CVE-2026-13140?
No fix has been published for CVE-2026-13140 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-13140 being exploited?
There is no known exploitation of CVE-2026-13140 in the wild and no public exploit code.
Sources
Also known as GHSA-23pf-xjp2-48q6.