How severe is CVE-2021-43563?

CVE-2021-43563 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43563 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-2021-43563?

CVE-2021-43563 affects Pixxio Pixx.io. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43563?

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.

When was CVE-2021-43563 published?

CVE-2021-43563 was published on 2021-11-10 and last updated on 2026-06-17.

CVE-2021-43563

CVE-2021-43563 is a high-severity vulnerability in Pixxio Pixx.io with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Pixxio Pixx.io
Published: 2021-11-10
Last modified: 2026-06-17

Description

An issue was discovered in the pixxio (aka pixx.io integration or DAM) extension before 1.0.6 for TYPO3. The Access Control in the bundled media browser is broken, which allows an unauthenticated attacker to perform requests to the pixx.io API for the configured API user. This allows an attacker to download various media files from the DAM system.

Frequently asked questions

What is CVE-2021-43563?: An issue was discovered in the pixxio (aka pixx.io integration or DAM) extension before 1.0.6 for TYPO3. The Access Control in the bundled media browser is broken, which allows an unauthenticated attacker to perform requests to the pixx.io API for the configured API user. This allows an attacker to download various media files from the DAM system.
How severe is CVE-2021-43563?: CVE-2021-43563 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43563 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-2021-43563?: CVE-2021-43563 affects Pixxio Pixx.io. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43563?: 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.
When was CVE-2021-43563 published?: CVE-2021-43563 was published on 2021-11-10 and last updated on 2026-06-17.

References

https://typo3.org/security/advisory/typo3-ext-sa-2021-017

Affected products (1)

cpe:2.3:a:pixxio:pixx.io:*:*:*:*:*:typo3:*:*

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CVE-2021-43562 — High (CVSS 8.8): An issue was discovered in the pixxio (aka pixx.io integration or DAM) extension before 1.0.6 for TYPO3. The extension…

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