How severe is CVE-2022-23494?

CVE-2022-23494 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-2022-23494?

CVE-2022-23494 affects the following packages: tinymce (npm), tinymce (npm), TinyMCE (NuGet), TinyMCE (NuGet), tinymce/tinymce (Packagist), tinymce/tinymce (Packagist). Ecosystems affected: npm, NuGet, Packagist.

How do I fix CVE-2022-23494?

Update tinymce to 6.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-23494 is resolved across your whole dependency graph.

How do I detect CVE-2022-23494 in my npm, NuGet, Packagist dependencies?

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

How do I mitigate CVE-2022-23494 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-2022-23494 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-23494 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-2022-23494?

CVE-2022-23494 has an EPSS (Exploit Prediction Scoring System) score of 1.0%, placing it in the 63th 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-2022-23494?

CVE-2022-23494 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-2022-23494 published, and has it been updated?

CVE-2022-23494 was published on December 8, 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.

📦

📦 npm.NET NuGet🐘 Packagist

Not in CISA KEV

MEDIUM severity

CVE-2022-23494 — tinymce

MEDIUMFix: tinymce/tinymce@6923d85

CVE-2022-23494 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in tinymce. A fix is available for tinymce — see the affected versions and patch details below.

Cross-site scripting vulnerability in TinyMCE alerts

Also known asGHSA-gg8r-xjwq-4w92

Published

Dec 8, 2022

Updated

Oct 28, 2026

Affected

6 pkgs

Patched

6 / 6

Exploits

None indexed

Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.0%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs63th percentile — riskier than 63% 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

6 pkgs affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

1Kother npm packages depend on this — each one inherits the vulnerability until it's patched upstream

tinymcenpm

1.4Mdownloads / week

Description

Impact

A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content. This can occur in plugins that use the alert or confirm dialogs, such as in the image plugin, which presents these dialogs when certain errors occur. The vulnerability allowed arbitrary JavaScript execution when an alert presented in the TinyMCE UI for the current user.

Patches

This vulnerability has been patched in TinyMCE 5.10.7 and TinyMCE 6.3.1 by ensuring HTML sanitization was still performed after unwrapping invalid elements.

Fix

To avoid this vulnerability:

Upgrade to TinyMCE 5.10.7 or higher for TinyMCE 5.x.
Upgrade to TinyMCE 6.3.1 or higher for TinyMCE 6.x.

Workaround

To reduce the impact of this vulnerability:

Ensure the the images_upload_handler returns a valid value as per the images_upload_handler documentation.

References

For more information

If you have any questions or comments about this advisory:

Email us at [email protected]
Open an issue in the TinyMCE repo

Affected Packages

6 total 6 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`tinymce`	≥ 6.0.0&&< 6.3.1	6.3.1`npm install tinymce@6.3.1`
📦npm	`tinymce`	all versions	5.10.7`npm install tinymce@5.10.7`
.NETNuGet	`TinyMCE`	≥ 6.0.0&&< 6.3.1	6.3.1`dotnet add package TinyMCE --version 6.3.1`
.NETNuGet	`TinyMCE`	all versions	5.10.7`dotnet add package TinyMCE --version 5.10.7`
🐘Packagist	`tinymce/tinymce`	≥ 6.0.0&&< 6.3.1	6.3.1`composer require tinymce/tinymce:^6.3.1`
🐘Packagist	`tinymce/tinymce`	all versions	5.10.7`composer require tinymce/tinymce:^5.10.7`

Affected Products

1 product · 2 configurations

Application

tinymcetiny

≥ 6.0.0 && < 6.3.1

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tinymce, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update tinymce to 6.3.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-23494 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

### Impact A cross-site scripting (XSS) vulnerability was discovered in the alert and confirm dialogs when these dialogs were provided with malicious HTML content. This can occur in plugins that use the alert or confirm dialogs, such as in the `image` plugin, which presents these dialogs when certain errors occur. The vulnerability allowed arbitrary JavaScript execution when an alert presented in the TinyMCE UI for the current user. ### Patches This vulnerability has been patched in TinyMCE 5.10.7 and TinyMCE 6.3.1 by ensuring HTML sanitization was still performed after unwrapping invalid ele

O3 Security · Impact-Aware SCA

Is CVE-2022-23494 in your dependencies?

Find it across npm, NuGet, Packagist, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

5.4/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

Dec 8, 2022

Last updated

Oct 28, 2026

Identifiers

CVE-2022-23494

GHSA-gg8r-xjwq-4w92

References

Advisorygithub.com · CVE 2022 23494.json Advisorygithub.com · GHSA gg8r xjwq 4w92 Advisorynvd.nist.gov · CVE 2022 23494 Fixgithub.com · 6923d85eba6de3e08ebc9c5a387b5abdaa21150e Fixgithub.com · 8bb2d2646d4e1a718fce61a775fa22e9d317b32d Webtiny.cloud · release notes5107 Webtiny.cloud · 6.3 release notes Webtiny.cloud · file image upload Packagegithub.com · tinymce

Related vulnerabilities

This CVE is medium severity; 8 of 8 other CVEs affecting tinymce are rated as high or higher (top: high).

CVE-2026-116675CVE-2026-47760CVE-2026-47759CVE-2026-47762CVE-2026-47761CVE-2024-38356CVE-2024-38357CVE-2024-29203

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 28, 2026

CVE-2022-23494 — tinymce

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Impact

Patches

Fix

Workaround

References

For more information

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is CVE-2022-23494 in your dependencies?