CVE-2026-116675: XSS

Description

TinyMCE is an open source rich text editor. From 7.9.3 until 7.9.4 and from 8.5.1 until 8.9.3, the media plugin creates elements crafted through data-mce-object in the active document before sanitization. Those elements can execute malicious scripts during processing, resulting in stored cross-site scripting for users with the media plugin enabled. This issue is fixed in versions 8.9.3 and 7.9.4.

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EPSS — Exploit Prediction

0.0035

Probability of exploitation

0.29%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://github.com/tinymce/tinymce/commit/bd1ab5ef024c648c3f9c0b409e54a6c227c7d8a2 https://github.com/tinymce/tinymce/releases/tag/8.9.3 https://github.com/tinymce/tinymce/security/advisories/GHSA-mf2p-h6hf-fcwm https://www.tiny.cloud/docs/tinymce/7/7.9.4-release-notes/#overview https://www.tiny.cloud/docs/tinymce/latest/8.9.3-release-notes/#overview

Frequently Asked Questions

What is CVE-2026-116675? +

TinyMCE is an open source rich text editor. From 7.9.3 until 7.9.4 and from 8.5.1 until 8.9.3, the media plugin creates elements crafted through data-mce-object in the active document before sanitization. Those elements can execute malicious scripts during processing, resulting in stored cross-site scripting for users with the media plugin enabled. This issue is fixed in versions 8.9.3 and 7.9.4.

How do I check if I'm vulnerable to CVE-2026-116675? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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