Widely used web editor; high-severity stored XSS affects many apps and users.
CVE-2026-47759
Stored XSS in TinyMCE before fixed versions.
Is CVE-2026-47759 being exploited?
Not confirmed. CVE-2026-47759 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-47759?
CVE-2026-47759 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-47759?
Yes. A fix has been recorded for CVE-2026-47759. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-47759 affect?
CVE-2026-47759 affects TinyMCE prior to 5.11.1, 7.9.3, 8.5.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-47759?
Upgrade to fixed versions: 5.11.1+, 7.9.3+, 8.5.1+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Stored XSS via unsanitized data-mce-* attributes enables script injection during serialization; could steal cookies or deface pages.
Patch when possible
- affected< 5.11.1
- affected>= 6.0.0 and <= 6.8.6
- affected>= 7.0.0 and < 7.9.3
- affected>= 8.0.0 and < 8.5.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.