How severe is CVE-2026-47759?

CVE-2026-47759 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-47759 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-47759?

CVE-2026-47759 affects Tiny Tinymce. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-47759?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-47759 have an EU (EUVD) identifier?

Yes. CVE-2026-47759 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32921.

When was CVE-2026-47759 published?

CVE-2026-47759 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-47759

CVE-2026-47759 is a high-severity vulnerability in Tiny Tinymce with a CVSS 3.x base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32921
Weakness: CWE-79
Affected product: Tiny Tinymce
Published: 2026-05-28
Last modified: 2026-06-17

Description

TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

Frequently asked questions

What is CVE-2026-47759?: TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.
How severe is CVE-2026-47759?: CVE-2026-47759 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-47759 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-47759?: CVE-2026-47759 affects Tiny Tinymce. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-47759?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-47759 have an EU (EUVD) identifier?: Yes. CVE-2026-47759 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32921.
When was CVE-2026-47759 published?: CVE-2026-47759 was published on 2026-05-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*

More vulnerabilities in Tiny Tinymce

CVE-2026-47762 — High (CVSS 8.7): TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via…
CVE-2026-47761 — High (CVSS 8.7): TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability in…
CVE-2026-47760 — High (CVSS 8.7): TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by…
CVE-2024-21911 — Medium (CVSS 6.1): TinyMCE versions before 5.6.0 are affected by a stored cross-site scripting vulnerability. An unauthenticated and…
CVE-2024-21910 — Medium (CVSS 6.1): TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated…
CVE-2024-21908 — Medium (CVSS 6.1): TinyMCE versions before 5.9.0 are affected by a stored cross-site scripting vulnerability. An unauthenticated and…

All CVEs affecting Tiny Tinymce →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →