How severe is CVE-2024-21910?

CVE-2024-21910 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-21910 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21910?

CVE-2024-21910 affects Tiny Tinymce. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21910?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21910 have an EU (EUVD) identifier?

Yes. CVE-2024-21910 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-2389.

When was CVE-2024-21910 published?

CVE-2024-21910 was published on 2024-01-03 and last updated on 2026-06-17.

CVE-2024-21910

CVE-2024-21910 is a medium-severity vulnerability in Tiny Tinymce with a CVSS 3.x base score of 6.1. 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: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-2389
Weakness: CWE-79
Affected product: Tiny Tinymce
Published: 2024-01-03
Last modified: 2026-06-17

Description

TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated attacker could introduce crafted image or link URLs that would result in the execution of arbitrary JavaScript in an editing user's browser.

Frequently asked questions

What is CVE-2024-21910?: TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated attacker could introduce crafted image or link URLs that would result in the execution of arbitrary JavaScript in an editing user's browser.
How severe is CVE-2024-21910?: CVE-2024-21910 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-21910 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21910?: CVE-2024-21910 affects Tiny Tinymce. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21910?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21910 have an EU (EUVD) identifier?: Yes. CVE-2024-21910 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-2389.
When was CVE-2024-21910 published?: CVE-2024-21910 was published on 2024-01-03 and last updated on 2026-06-17.

References

Affected products (1)

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

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