How severe is GHSA-9hcv-j9pv-qmph?

GHSA-9hcv-j9pv-qmph has a CVSS score of 6.1/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by GHSA-9hcv-j9pv-qmph?

GHSA-9hcv-j9pv-qmph affects the following packages: tinymce (npm), tinymce (npm), tinymce (npm), TinyMCE (NuGet), TinyMCE (NuGet), TinyMCE (NuGet), tinymce/tinymce (Packagist), tinymce/tinymce (Packagist), and 2 more. Ecosystems affected: npm, NuGet, Packagist, PyPI.

How do I fix GHSA-9hcv-j9pv-qmph?

Update tinymce to 5.11.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9hcv-j9pv-qmph is resolved across your whole dependency graph.

How do I detect GHSA-9hcv-j9pv-qmph in my npm, NuGet, Packagist, PyPI 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 GHSA-9hcv-j9pv-qmph 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 GHSA-9hcv-j9pv-qmph actively exploited in the wild?

No public exploit code has been indexed for GHSA-9hcv-j9pv-qmph 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 GHSA-9hcv-j9pv-qmph?

GHSA-9hcv-j9pv-qmph has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 45th 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 GHSA-9hcv-j9pv-qmph?

GHSA-9hcv-j9pv-qmph 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 GHSA-9hcv-j9pv-qmph published, and has it been updated?

GHSA-9hcv-j9pv-qmph was published on June 19, 2024 and was last updated on September 10, 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🐍 PyPI

Not in CISA KEV

MEDIUM severity

TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp optionGHSA-9hcv-j9pv-qmph

MEDIUMFix: tinymce/tinymce@5acb741

GHSA-9hcv-j9pv-qmph is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in tinymce. A fix is available for tinymce — see the affected versions and patch details below.

Also known asCVE-2024-38356PYSEC-2026-1301

Published

Jun 19, 2024

Updated

Sep 10, 2026

Affected

10 pkgs

Patched

10 / 10

Exploits

None indexed

Exploitation data as of Nov 8, 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 GHSA-9hcv-j9pv-qmph.

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs45th percentile — riskier than 45% 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

10 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

1.5Mdownloads / week

Description

Impact

A cross-site scripting (XSS) vulnerability was discovered in TinyMCE’s content extraction code. When using the noneditable_regexp option, specially crafted HTML attributes containing malicious code were able to be executed when content was extracted from the editor.

Patches

This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that, when using the noneditable_regexp option, any content within an attribute is properly verified to match the configured regular expression before being added.

Fix

To avoid this vulnerability:

Upgrade to TinyMCE 7.2.0 or higher.
Upgrade to TinyMCE 6.8.4 or higher for TinyMCE 6.x.
Upgrade to TinyMCE 5.11.0 LTS or higher for TinyMCE 5.x (only available as part of commercial long-term support contract).

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

10 total 10 fixed

Ecosystem	Package	Vulnerable range	Fix
📦npm	`tinymce`	all versions	5.11.0`npm install tinymce@5.11.0`
📦npm	`tinymce`	≥ 6.0.0&&< 6.8.4	6.8.4`npm install tinymce@6.8.4`
📦npm	`tinymce`	≥ 7.0.0&&< 7.2.0	7.2.0`npm install tinymce@7.2.0`
.NETNuGet	`TinyMCE`	all versions	5.11.0`dotnet add package TinyMCE --version 5.11.0`
.NETNuGet	`TinyMCE`	≥ 6.0.0&&< 6.8.4	6.8.4`dotnet add package TinyMCE --version 6.8.4`
.NETNuGet	`TinyMCE`	≥ 7.0.0&&< 7.2.0	7.2.0`dotnet add package TinyMCE --version 7.2.0`

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 5.11.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9hcv-j9pv-qmph 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)](https://owasp.org/www-community/attacks/xss/) vulnerability was discovered in TinyMCE’s content extraction code. When using the `noneditable_regexp` option, specially crafted HTML attributes containing malicious code were able to be executed when content was extracted from the editor. ### Patches This vulnerability has been patched in TinyMCE 7.2.0, TinyMCE 6.8.4 and TinyMCE 5.11.0 LTS by ensuring that, when using the `noneditable_regexp` option, any content within an attribute is properly verified to match the configured regular expression before bei

O3 Security · Impact-Aware SCA

Is GHSA-9hcv-j9pv-qmph in your dependencies?

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

Scan my dependencies How O3 SCA works

CVSS Score

6.1/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/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

Jun 19, 2024

Last updated

Sep 10, 2026

Identifiers

GHSA-9hcv-j9pv-qmph

PYSEC-2026-1301

References

Advisorynvd.nist.gov · CVE 2024 38356 Webgithub.com · GHSA 9hcv j9pv qmph Webgithub.com · 5acb741665a98e83d62b91713c800abbff43b00d Webgithub.com · a9fb858509f86dacfa8b01cfd34653b408983ac0 Webowasp.org · xss Webtiny.cloud · 6.8.4 release notes Webtiny.cloud · 7.2 release notes Webtiny.cloud · 7.2 release notes 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 verifiedSep 10, 2026

TinyMCE Cross-Site Scripting (XSS) vulnerability using noneditable_regexp optionGHSA-9hcv-j9pv-qmph

Exploitation Status

No confirmed exploitation observed yet

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Impact

Patches

Fix

References

For more information

Affected Packages

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is GHSA-9hcv-j9pv-qmph in your dependencies?