How severe is CVE-2024-34355?

CVE-2024-34355 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2024-34355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-34355?

CVE-2024-34355 affects Typo3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-34355?

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

Does CVE-2024-34355 have an EU (EUVD) identifier?

Yes. CVE-2024-34355 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1865.

When was CVE-2024-34355 published?

CVE-2024-34355 was published on 2024-05-14 and last updated on 2026-06-17.

CVE-2024-34355

CVE-2024-34355 is a low-severity vulnerability in Typo3 with a CVSS 3.x base score of 3.5. 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: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-1865
Weakness: CWE-79
Affected product: Typo3
Published: 2024-05-14
Last modified: 2026-06-17

Description

TYPO3 is an enterprise content management system. Starting in version 13.0.0 and prior to version 13.1.1, the history backend module is vulnerable to HTML injection. Although Content-Security-Policy headers effectively prevent JavaScript execution, adversaries can still inject malicious HTML markup. Exploiting this vulnerability requires a valid backend user account. TYPO3 version 13.1.1 fixes the problem described.

Frequently asked questions

What is CVE-2024-34355?: TYPO3 is an enterprise content management system. Starting in version 13.0.0 and prior to version 13.1.1, the history backend module is vulnerable to HTML injection. Although Content-Security-Policy headers effectively prevent JavaScript execution, adversaries can still inject malicious HTML markup. Exploiting this vulnerability requires a valid backend user account. TYPO3 version 13.1.1 fixes the problem described.
How severe is CVE-2024-34355?: CVE-2024-34355 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2024-34355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-34355?: CVE-2024-34355 affects Typo3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-34355?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-34355 have an EU (EUVD) identifier?: Yes. CVE-2024-34355 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1865.
When was CVE-2024-34355 published?: CVE-2024-34355 was published on 2024-05-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*

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