Stored Cross-Site Scripting in Canarytokens.org

published 2026-06-24 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-38736

cvss: 1.1; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

Thinkst Applied Research Canarytokens f5aa5c4e

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 4 mo ago (2026-06-24)

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	1.1	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CNA	4.0	1.1	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Thinkst Applied Research Canarytokens

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /thinkst/canarytokens/security/advisories/GHSA-23pf-xjp2-48q6

Sources

CVE List CVE-2026-13140
NVD CVE-2026-13140

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary