How severe is CVE-2026-6553?

CVE-2026-6553 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-6553 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6553?

CVE-2026-6553 affects Typo3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6553?

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-2026-6553 have an EU (EUVD) identifier?

Yes. CVE-2026-6553 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24081.

When was CVE-2026-6553 published?

CVE-2026-6553 was published on 2026-04-21 and last updated on 2026-06-17.

CVE-2026-6553

CVE-2026-6553 is a high-severity vulnerability in Typo3 with a CVSS 3.x base score of 7.5. 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-312.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.3
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24081
Weakness: CWE-312
Affected product: Typo3
Published: 2026-04-21
Last modified: 2026-06-17

Description

Changing backend users' passwords via the user settings module results in storing the cleartext password in the uc and user_settings fields of the be_users database table. This issue affects TYPO3 CMS version 14.2.0.

Frequently asked questions

What is CVE-2026-6553?: Changing backend users' passwords via the user settings module results in storing the cleartext password in the uc and user_settings fields of the be_users database table. This issue affects TYPO3 CMS version 14.2.0.
How severe is CVE-2026-6553?: CVE-2026-6553 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-6553 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6553?: CVE-2026-6553 affects Typo3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6553?: 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-2026-6553 have an EU (EUVD) identifier?: Yes. CVE-2026-6553 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24081.
When was CVE-2026-6553 published?: CVE-2026-6553 was published on 2026-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:typo3:typo3:14.2.0:*:*:*:*:*:*:*

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