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Fencer Intel
medium 6.3

CVE-2022-31113 json

Cross-Site Scripting in Canarytoken history

published 4y ago modified 4mo ago also EUVD-2022-52751

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

Canarytokens is an open source tool which helps track activity and actions on your network. A Cross-Site Scripting vulnerability was identified in the history page of triggered Canarytokens. This permits an attacker who recognised an HTTP-based Canarytoken (a URL) to execute Javascript in the Canarytoken's history page (domain: canarytokens.org) when the history page is later visited by the Canarytoken's creator. This vulnerability could be used to disable or delete the affected Canarytoken, or view its activation history. It might also be used as a stepping stone towards revealing more information about the Canarytoken's creator to the attacker. For example, an attacker could recover the email address tied to the Canarytoken, or place Javascript on the history page that redirect the creator towards an attacker-controlled Canarytoken to show the creator's network location. An attacker could only act on the discovered Canarytoken. This issue did not expose other Canarytokens or other Canarytoken creators. The issue has been patched on Canarytokens.org and in the latest release. No signs of successful exploitation of this vulnerability have been found. Users are advised to upgrade. There are no known workarounds for this issue.

Patch / fix

  • thinkst canarytokens 2022-07-01

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • thinkst canarytokens

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel 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.