TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` serialization
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 8.9.3, 7.9.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
TinyMCE, an open source rich text editor, is affected when its media plugin is enabled. The flaw can allow malicious scripts to run in a user's browser, which can lead to stored cross-site scripting.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- tinymce tinymce
From 8.5.1 · fixed in 8.9.3; From 7.9.3 · fixed in 7.9.4
- tinymcenpm
From 8.5.1 · fixed in 8.9.3
- TinyMCENuGet
From 8.5.1 · fixed in 8.9.3
- tinymce/tinymcePackagist
From 8.5.1 · fixed in 8.9.3
- tinymcenpm
From 7.9.3 · fixed in 7.9.4
- TinyMCENuGet
From 7.9.3 · fixed in 7.9.4
- tinymce/tinymcePackagist
From 7.9.3 · fixed in 7.9.4