CVE-2026-47761Network attack vector

Stored XSS via unsanitized media attributes

Published May 28, 2026 · Updated May 28, 2026

Stored XSS in TinyMCE allows remote authenticated users to execute attacker-supplied scripts when another user renders crafted content. The media plugin fails to sanitize data-mce-object and data-mce-p-* attributes before preserving them in rendered media content. Exploitation requires the media plugin, permission to submit stored editor content, and a user who renders it; script execution can read or alter data accessible to that user's browser context.

CVSS severity8.7
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in TinyMCE allows remote authenticated users to execute attacker-supplied scripts when another user renders crafted content. The media plugin fails to sanitize data-mce-object and data-mce-p-* attributes before preserving them in rendered media content. Exploitation requires the media plugin, permission to submit stored editor content, and a user who renders it; script execution can read or alter data accessible to that user's browser context.

The record

CVE
CVE-2026-47761
Published
May 28, 2026
Updated
May 28, 2026
Vendor
Tiny Technologies
Product
TinyMCE
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 5.11.1
  2. Affected versionversion=>= 6.0.0, <= 6.8.6
  3. Affected versionversion=>= 7.0.0, < 7.9.3
  4. Affected versionversion=>= 8.0.0, < 8.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tiny Technologies · TinyMCEversion=< 5.11.1; version=>= 6.0.0, <= 6.8.6; version=>= 7.0.0, < 7.9.3; version=>= 8.0.0, < 8.5.1

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
8.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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