How severe is CVE-2021-43562?

CVE-2021-43562 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-2021-43562 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43562?

CVE-2021-43562 affects Pixxio Pixx.io. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43562?

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-2021-43562 published?

CVE-2021-43562 was published on 2021-11-10 and last updated on 2026-06-17.

CVE-2021-43562

CVE-2021-43562 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. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
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 extension fails to restrict the image download to the configured pixx.io DAM URL, resulting in SSRF. As a result, an attacker can download various content from a remote location and save it to a user-controlled filename, which may result in Remote Code Execution. A TYPO3 backend user account is required to exploit this.

Frequently asked questions

What is CVE-2021-43562?: An issue was discovered in the pixxio (aka pixx.io integration or DAM) extension before 1.0.6 for TYPO3. The extension fails to restrict the image download to the configured pixx.io DAM URL, resulting in SSRF. As a result, an attacker can download various content from a remote location and save it to a user-controlled filename, which may result in Remote Code Execution. A TYPO3 backend user account is required to exploit this.
How severe is CVE-2021-43562?: CVE-2021-43562 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-2021-43562 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43562?: CVE-2021-43562 affects Pixxio Pixx.io. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43562?: 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-2021-43562 published?: CVE-2021-43562 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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