How severe is CVE-2021-28380?

CVE-2021-28380 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-28380 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28380?

CVE-2021-28380 affects Aimeos Project Aimeos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28380?

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

When was CVE-2021-28380 published?

CVE-2021-28380 was published on 2021-03-16 and last updated on 2026-06-17.

CVE-2021-28380

CVE-2021-28380 is a medium-severity vulnerability in Aimeos Project Aimeos with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Aimeos Project Aimeos
Published: 2021-03-16
Last modified: 2026-06-17

Description

The aimeos (aka Aimeos shop and e-commerce framework) extension before 19.10.12 and 20.x before 20.10.5 for TYPO3 allows XSS via a backend user account.

Frequently asked questions

What is CVE-2021-28380?: The aimeos (aka Aimeos shop and e-commerce framework) extension before 19.10.12 and 20.x before 20.10.5 for TYPO3 allows XSS via a backend user account.
How severe is CVE-2021-28380?: CVE-2021-28380 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-28380 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28380?: CVE-2021-28380 affects Aimeos Project Aimeos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28380?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-28380 published?: CVE-2021-28380 was published on 2021-03-16 and last updated on 2026-06-17.

References

https://typo3.org/security/advisory/typo3-ext-sa-2021-003

Affected products (1)

cpe:2.3:a:aimeos_project:aimeos:*:*:*:*:*:typo3:*:*

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