How severe is CVE-2020-15513?

CVE-2020-15513 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-15513 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15513?

CVE-2020-15513 affects Mittwald Typo3 Forum. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-15513?

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

When was CVE-2020-15513 published?

CVE-2020-15513 was published on 2020-07-07 and last updated on 2026-06-17.

CVE-2020-15513

CVE-2020-15513 is a medium-severity vulnerability in Mittwald Typo3 Forum with a CVSS 3.x base score of 5.3. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Mittwald Typo3 Forum
Published: 2020-07-07
Last modified: 2026-06-17

Description

The typo3_forum extension before 1.2.1 for TYPO3 has Incorrect Access Control.

Frequently asked questions

What is CVE-2020-15513?: The typo3_forum extension before 1.2.1 for TYPO3 has Incorrect Access Control.
How severe is CVE-2020-15513?: CVE-2020-15513 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-15513 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15513?: CVE-2020-15513 affects Mittwald Typo3 Forum. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-15513?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-15513 published?: CVE-2020-15513 was published on 2020-07-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mittwald:typo3_forum:*:*:*:*:*:typo3:*:*

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