How severe is CVE-2022-23466?

CVE-2022-23466 has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2022-23466?

CVE-2022-23466 affects the following packages: teler.app (Go), teler.app (Go), teler.app (Go), teler.app (Go). Ecosystems affected: Go.

How do I fix CVE-2022-23466?

Update teler.app to 2.0.0-rc.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-23466 is resolved across your whole dependency graph.

How do I detect CVE-2022-23466 in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for teler.app, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2022-23466 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2022-23466 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-23466 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2022-23466?

CVE-2022-23466 has an EPSS (Exploit Prediction Scoring System) score of 0.4%, placing it in the 36th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2022-23466?

CVE-2022-23466 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2022-23466 published, and has it been updated?

CVE-2022-23466 was published on December 6, 2022 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹

🐹 Go

Not in CISA KEV

MEDIUM severity

CVE-2022-23466 — teler.app

MEDIUMFix: kitabisa/teler@20f59ed

CVE-2022-23466 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in teler.app. A fix is available for teler.app — see the affected versions and patch details below.

DOM-based cross-site scripting (XSS) in teler dashboard

Also known asGHSA-xr7p-8q82-878q

Published

Dec 6, 2022

Updated

Oct 28, 2026

Affected

4 pkgs

Patched

4 / 4

Exploits

None indexed

Exploitation data as of Nov 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-23466.

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs36th percentile — riskier than 36% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

4 pkgs affected

🐹teler.app🐹teler.app🐹teler.app🐹teler.app

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

teler prior to version <= 2.0.0-rc.4 is vulnerable to DOM-based cross-site scripting (XSS) in the teler dashboard. When teler requests messages from the event stream on the /events endpoint, the log data displayed on the dashboard are not sanitized.

Impact

This only affects authenticated users and can only be exploited based on detected threats if the log contains a DOM scripting payload. This indicates a low severity and there is no significant impact on the users.

Affected Version

This issue was introduced from version v2.0.0-rc to v2.0.0-rc.3 & v2.0.0-dev.

Patches

This vulnerability has been fixed on version v2.0.0-rc.4 & v2.0.0-dev.2.

Workarounds

Here are some workarounds to handle this case:

Deactivate the live event dashboard from the configuration file, or
Upgrade teler version to v2.0.0-rc.4 or v2.0.0-dev.2 & above.

References

https://github.com/kitabisa/teler/commit/20f59eda2420ac64e29f199a61230a0abc875e8e

Affected Packages

4 total 4 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`teler.app`	≥ 2.0.0-rc&&< 2.0.0-rc.4	2.0.0-rc.4`go get teler.app@v2.0.0-rc.4`
🐹Go	`teler.app`	≥ 2.0.0-dev&&< 2.0.0-dev.2	2.0.0-dev.2`go get teler.app@v2.0.0-dev.2`
🐹Go	`teler.app`	≥ 0.0.0-20220625162531-2289e90590a9&&< 0.0.0-20221203202318-20f59eda2420	0.0.0-20221203202318-20f59eda2420`go get teler.app@v0.0.0-20221203202318-20f59eda2420`
🐹Go	`teler.app`	≥ 1.2.3-0.20220625162531-2289e90590a9&&< 1.2.3-0.20221203202318-20f59eda2420	1.2.3-0.20221203202318-20f59eda2420`go get teler.app@v1.2.3-0.20221203202318-20f59eda2420`

Affected Products

1 product · 4 configurations

Application

telerteler_project

1 version

2.0.0

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for teler.app, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update teler.app to 2.0.0-rc.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-23466 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

### Description teler prior to version <= 2.0.0-rc.4 is vulnerable to DOM-based cross-site scripting (XSS) in the teler dashboard. When teler requests messages from the event stream on the `/events` endpoint, the log data displayed on the dashboard are not sanitized. ### Impact This only affects authenticated users and can only be exploited based on detected threats if the log contains a DOM scripting payload. This indicates a low severity and there is no significant impact on the users. ### Affected Version This issue was introduced from version `v2.0.0-rc` to `v2.0.0-rc.3` & `v2.0.0-dev